mirror of
https://github.com/glest/glest-source.git
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- initial work to integrate theam SDK with megaglest
This commit is contained in:
SoftCoder
787
source/steamshim_parent/steamshim_parent.cpp
Normal file
787
source/steamshim_parent/steamshim_parent.cpp
Normal file
@@ -0,0 +1,787 @@
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#ifndef GAME_LAUNCH_NAME
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#define GAME_LAUNCH_NAME "megaglest_shim"
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#endif
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#ifdef _WIN32
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#define WIN32_LEAN_AND_MEAN 1
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#define UNICODE
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#include <windows.h>
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typedef PROCESS_INFORMATION ProcessType;
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typedef HANDLE PipeType;
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#define NULLPIPE NULL
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#define LLUFMT "%I64u"
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#else
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/wait.h>
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#include <signal.h>
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#include <fcntl.h>
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typedef pid_t ProcessType;
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typedef int PipeType;
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#define NULLPIPE -1
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#define LLUFMT "%llu"
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#endif
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#include <stdlib.h>
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#include "steam/steam_api.h"
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#ifdef STEAMSHIM_DEBUG
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#define dbgpipe printf
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#else
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static inline void dbgpipe(const char *fmt, ...) {}
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#endif
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/* platform-specific mainline calls this. */
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static int mainline(void);
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/* Windows and Unix implementations of this stuff below. */
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static void fail(const char *err);
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static bool writePipe(PipeType fd, const void *buf, const unsigned int _len);
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static int readPipe(PipeType fd, void *buf, const unsigned int _len);
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static bool createPipes(PipeType *pPipeParentRead, PipeType *pPipeParentWrite,
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PipeType *pPipeChildRead, PipeType *pPipeChildWrite);
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static void closePipe(PipeType fd);
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static bool setEnvVar(const char *key, const char *val);
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static bool launchChild(ProcessType *pid);
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static int closeProcess(ProcessType *pid);
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#ifdef _WIN32
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static void fail(const char *err)
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{
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MessageBoxA(NULL, err, "ERROR", MB_ICONERROR | MB_OK);
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ExitProcess(1);
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} // fail
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static bool writePipe(PipeType fd, const void *buf, const unsigned int _len)
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{
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const DWORD len = (DWORD) _len;
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DWORD bw = 0;
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return ((WriteFile(fd, buf, len, &bw, NULL) != 0) && (bw == len));
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} // writePipe
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static int readPipe(PipeType fd, void *buf, const unsigned int _len)
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{
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const DWORD len = (DWORD) _len;
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DWORD br = 0;
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return ReadFile(fd, buf, len, &br, NULL) ? (int) br : -1;
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} // readPipe
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static bool createPipes(PipeType *pPipeParentRead, PipeType *pPipeParentWrite,
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PipeType *pPipeChildRead, PipeType *pPipeChildWrite)
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{
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SECURITY_ATTRIBUTES pipeAttr;
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pipeAttr.nLength = sizeof (pipeAttr);
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pipeAttr.lpSecurityDescriptor = NULL;
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pipeAttr.bInheritHandle = TRUE;
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if (!CreatePipe(pPipeParentRead, pPipeChildWrite, &pipeAttr, 0))
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return 0;
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pipeAttr.nLength = sizeof (pipeAttr);
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pipeAttr.lpSecurityDescriptor = NULL;
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pipeAttr.bInheritHandle = TRUE;
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if (!CreatePipe(pPipeChildRead, pPipeParentWrite, &pipeAttr, 0))
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{
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CloseHandle(*pPipeParentRead);
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CloseHandle(*pPipeChildWrite);
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return 0;
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} // if
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return 1;
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} // createPipes
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static void closePipe(PipeType fd)
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{
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CloseHandle(fd);
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} // closePipe
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static bool setEnvVar(const char *key, const char *val)
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{
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return (SetEnvironmentVariableA(key, val) != 0);
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} // setEnvVar
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static LPWSTR genCommandLine()
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{
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// Construct a command line with the appropriate filename
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LPWSTR cmdline = GetCommandLineW();
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// Find the index of the first argument after 0
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int iFirstArg = -1;
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bool quote = false;
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bool whitespace = false;
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for (int i = 0; cmdline[i]; ++i)
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{
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if (cmdline[i] == '"' && (i == 0 || cmdline[i-1] != '\\'))
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{
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quote = !quote;
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whitespace = false;
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}
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else if (!quote && (cmdline[i] == ' ' || cmdline[i] == '\t'))
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{
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whitespace = true;
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}
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else
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{
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if (whitespace)
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{
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iFirstArg = i;
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break;
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}
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whitespace = false;
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}
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}
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// If it doesn't exist, that must mean there are no arguments,
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// so just return GAME_LAUNCH_NAME
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if (iFirstArg == -1)
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return _wcsdup(TEXT("\".\\" GAME_LAUNCH_NAME ".exe\""));
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// Create the new string
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// (`".\.exe" ` == +9
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LPWSTR newcmdline = (LPWSTR)malloc(sizeof(TEXT(GAME_LAUNCH_NAME))
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+ sizeof(WCHAR) * (wcslen(cmdline) - iFirstArg + 9));
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wsprintf(newcmdline, TEXT("\".\\" GAME_LAUNCH_NAME ".exe\" %s"), cmdline + iFirstArg);
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return newcmdline;
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}
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static bool launchChild(ProcessType *pid)
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{
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STARTUPINFOW si;
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memset(&si, 0, sizeof(si));
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return CreateProcessW(TEXT(".\\" GAME_LAUNCH_NAME ".exe"),
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genCommandLine(), NULL, NULL, TRUE, 0, NULL,
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NULL, &si, pid);
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} // launchChild
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static int closeProcess(ProcessType *pid)
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{
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CloseHandle(pid->hProcess);
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CloseHandle(pid->hThread);
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return 0;
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} // closeProcess
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int CALLBACK WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
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LPSTR lpCmdLine, int nCmdShow)
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{
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mainline();
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ExitProcess(0);
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return 0; // just in case.
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} // WinMain
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#else // everyone else that isn't Windows.
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static void fail(const char *err)
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{
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// !!! FIXME: zenity or something.
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fprintf(stderr, "%s\n", err);
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_exit(1);
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} // fail
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static bool writePipe(PipeType fd, const void *buf, const unsigned int _len)
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{
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const ssize_t len = (ssize_t) _len;
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ssize_t bw;
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while (((bw = write(fd, buf, len)) == -1) && (errno == EINTR)) { /*spin*/ }
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return (bw == len);
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} // writePipe
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static int readPipe(PipeType fd, void *buf, const unsigned int _len)
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{
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const ssize_t len = (ssize_t) _len;
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ssize_t br;
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while (((br = read(fd, buf, len)) == -1) && (errno == EINTR)) { /*spin*/ }
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return (int) br;
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} // readPipe
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static bool createPipes(PipeType *pPipeParentRead, PipeType *pPipeParentWrite,
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PipeType *pPipeChildRead, PipeType *pPipeChildWrite)
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{
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int fds[2];
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if (pipe(fds) == -1)
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return 0;
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fcntl(fds[0], F_SETFL, 0);
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fcntl(fds[1], F_SETFL, 0);
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*pPipeParentRead = fds[0];
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*pPipeChildWrite = fds[1];
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if (pipe(fds) == -1)
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{
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close(*pPipeParentRead);
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close(*pPipeChildWrite);
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return 0;
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} // if
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fcntl(fds[0], F_SETFL, 0);
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fcntl(fds[1], F_SETFL, 0);
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*pPipeChildRead = fds[0];
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*pPipeParentWrite = fds[1];
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return 1;
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} // createPipes
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static void closePipe(PipeType fd)
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{
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close(fd);
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} // closePipe
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static bool setEnvVar(const char *key, const char *val)
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{
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return (setenv(key, val, 1) != -1);
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} // setEnvVar
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static int GArgc = 0;
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static char **GArgv = NULL;
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static bool launchChild(ProcessType *pid)
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{
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dbgpipe("***IN launchChild START.\n");
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*pid = fork();
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dbgpipe("***IN launchChild pid = %d.\n",*pid);
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if (*pid == -1) // failed
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return false;
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else if (*pid != 0) // we're the parent
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return true; // we'll let the pipe fail if this didn't work.
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// we're the child.
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GArgv[0] = strdup("./" GAME_LAUNCH_NAME);
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dbgpipe("***IN launchChild [%s].\n",GArgv[0]);
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int ret = execvp(GArgv[0], GArgv);
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dbgpipe("***IN launchChild [%s] got ret = %d errorno = %d.\n",GArgv[0],ret,errno);
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// still here? It failed! Terminate, closing child's ends of the pipes.
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_exit(1);
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} // launchChild
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static int closeProcess(ProcessType *pid)
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{
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int rc = 0;
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while ((waitpid(*pid, &rc, 0) == -1) && (errno == EINTR)) { /*spin*/ }
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if (!WIFEXITED(rc))
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return 1; // oh well.
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return WEXITSTATUS(rc);
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} // closeProcess
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int main(int argc, char **argv)
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{
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printf("#1 =============> Megaglest Parent starting mainline.\n");
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signal(SIGPIPE, SIG_IGN);
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GArgc = argc;
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GArgv = argv;
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return mainline();
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} // main
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#endif
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// THE ACTUAL PROGRAM.
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class SteamBridge;
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static ISteamUserStats *GSteamStats = NULL;
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static ISteamUtils *GSteamUtils = NULL;
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static ISteamUser *GSteamUser = NULL;
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static ISteamFriends *GSteamFriends = NULL;
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static ISteamApps *GSteamApps = NULL;
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static AppId_t GAppID = 0;
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static uint64 GUserID = 0;
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static SteamBridge *GSteamBridge = NULL;
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class SteamBridge
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{
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public:
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SteamBridge(PipeType _fd);
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STEAM_CALLBACK(SteamBridge, OnUserStatsReceived, UserStatsReceived_t, m_CallbackUserStatsReceived);
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STEAM_CALLBACK(SteamBridge, OnUserStatsStored, UserStatsStored_t, m_CallbackUserStatsStored);
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private:
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PipeType fd;
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};
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typedef enum ShimCmd
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{
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SHIMCMD_BYE,
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SHIMCMD_PUMP,
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SHIMCMD_REQUESTSTATS,
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SHIMCMD_STORESTATS,
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SHIMCMD_SETACHIEVEMENT,
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SHIMCMD_GETACHIEVEMENT,
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SHIMCMD_RESETSTATS,
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SHIMCMD_SETSTATI,
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SHIMCMD_GETSTATI,
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SHIMCMD_SETSTATF,
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SHIMCMD_GETSTATF,
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SHIMCMD_GETPERSONANAME,
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SHIMCMD_GETCURRENTGAMELANGUAGE,
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} ShimCmd;
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typedef enum ShimEvent
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{
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SHIMEVENT_BYE,
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SHIMEVENT_STATSRECEIVED,
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SHIMEVENT_STATSSTORED,
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SHIMEVENT_SETACHIEVEMENT,
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SHIMEVENT_GETACHIEVEMENT,
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SHIMEVENT_RESETSTATS,
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SHIMEVENT_SETSTATI,
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SHIMEVENT_GETSTATI,
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SHIMEVENT_SETSTATF,
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SHIMEVENT_GETSTATF,
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SHIMEVENT_GETPERSONANAME,
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SHIMEVENT_GETCURRENTGAMELANGUAGE,
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} ShimEvent;
|
||||
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static bool write1ByteCmd(PipeType fd, const uint8 b1)
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||||
{
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const uint8 buf[] = { 1, b1 };
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||||
return writePipe(fd, buf, sizeof (buf));
|
||||
} // write1ByteCmd
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static bool write2ByteCmd(PipeType fd, const uint8 b1, const uint8 b2)
|
||||
{
|
||||
const uint8 buf[] = { 2, b1, b2 };
|
||||
return writePipe(fd, buf, sizeof (buf));
|
||||
} // write2ByteCmd
|
||||
|
||||
static bool write3ByteCmd(PipeType fd, const uint8 b1, const uint8 b2, const uint8 b3)
|
||||
{
|
||||
const uint8 buf[] = { 3, b1, b2, b3 };
|
||||
return writePipe(fd, buf, sizeof (buf));
|
||||
} // write3ByteCmd
|
||||
|
||||
static bool writeString(PipeType fd, ShimEvent event, const char *str)
|
||||
{
|
||||
uint8 buf[256];
|
||||
buf[0] = strlen(str) + 2;
|
||||
buf[1] = (uint8) event;
|
||||
strcpy((char *) buf + 2, str);
|
||||
return writePipe(fd, buf, buf[0] + 1);
|
||||
} // writeString
|
||||
|
||||
static inline bool writeBye(PipeType fd)
|
||||
{
|
||||
dbgpipe("Parent sending SHIMEVENT_BYE().\n");
|
||||
return write1ByteCmd(fd, SHIMEVENT_BYE);
|
||||
} // writeBye
|
||||
|
||||
static inline bool writeStatsReceived(PipeType fd, const bool okay)
|
||||
{
|
||||
dbgpipe("Parent sending SHIMEVENT_STATSRECEIVED(%sokay).\n", okay ? "" : "!");
|
||||
return write2ByteCmd(fd, SHIMEVENT_STATSRECEIVED, okay ? 1 : 0);
|
||||
} // writeStatsReceived
|
||||
|
||||
static inline bool writeStatsStored(PipeType fd, const bool okay)
|
||||
{
|
||||
dbgpipe("Parent sending SHIMEVENT_STATSSTORED(%sokay).\n", okay ? "" : "!");
|
||||
return write2ByteCmd(fd, SHIMEVENT_STATSSTORED, okay ? 1 : 0);
|
||||
} // writeStatsStored
|
||||
|
||||
static bool writeAchievementSet(PipeType fd, const char *name, const bool enable, const bool okay)
|
||||
{
|
||||
uint8 buf[256];
|
||||
uint8 *ptr = buf+1;
|
||||
dbgpipe("Parent sending SHIMEVENT_SETACHIEVEMENT('%s', %senable, %sokay).\n", name, enable ? "" : "!", okay ? "" : "!");
|
||||
*(ptr++) = (uint8) SHIMEVENT_SETACHIEVEMENT;
|
||||
*(ptr++) = enable ? 1 : 0;
|
||||
*(ptr++) = okay ? 1 : 0;
|
||||
strcpy((char *) ptr, name);
|
||||
ptr += strlen(name) + 1;
|
||||
buf[0] = (uint8) ((ptr-1) - buf);
|
||||
return writePipe(fd, buf, buf[0] + 1);
|
||||
} // writeAchievementSet
|
||||
|
||||
static bool writeAchievementGet(PipeType fd, const char *name, const int status, const uint64 time)
|
||||
{
|
||||
uint8 buf[256];
|
||||
uint8 *ptr = buf+1;
|
||||
dbgpipe("Parent sending SHIMEVENT_GETACHIEVEMENT('%s', status %d, time " LLUFMT ").\n", name, status, (unsigned long long) time);
|
||||
*(ptr++) = (uint8) SHIMEVENT_GETACHIEVEMENT;
|
||||
*(ptr++) = (uint8) status;
|
||||
memcpy(ptr, &time, sizeof (time));
|
||||
ptr += sizeof (time);
|
||||
strcpy((char *) ptr, name);
|
||||
ptr += strlen(name) + 1;
|
||||
buf[0] = (uint8) ((ptr-1) - buf);
|
||||
return writePipe(fd, buf, buf[0] + 1);
|
||||
} // writeAchievementGet
|
||||
|
||||
static inline bool writeResetStats(PipeType fd, const bool alsoAch, const bool okay)
|
||||
{
|
||||
dbgpipe("Parent sending SHIMEVENT_RESETSTATS(%salsoAchievements, %sokay).\n", alsoAch ? "" : "!", okay ? "" : "!");
|
||||
return write3ByteCmd(fd, SHIMEVENT_RESETSTATS, alsoAch ? 1 : 0, okay ? 1 : 0);
|
||||
} // writeResetStats
|
||||
|
||||
static bool writeStatThing(PipeType fd, const ShimEvent ev, const char *name, const void *val, const size_t vallen, const bool okay)
|
||||
{
|
||||
uint8 buf[256];
|
||||
uint8 *ptr = buf+1;
|
||||
*(ptr++) = (uint8) ev;
|
||||
*(ptr++) = okay ? 1 : 0;
|
||||
memcpy(ptr, val, vallen);
|
||||
ptr += vallen;
|
||||
strcpy((char *) ptr, name);
|
||||
ptr += strlen(name) + 1;
|
||||
buf[0] = (uint8) ((ptr-1) - buf);
|
||||
return writePipe(fd, buf, buf[0] + 1);
|
||||
} // writeStatThing
|
||||
|
||||
static inline bool writeSetStatI(PipeType fd, const char *name, const int32 val, const bool okay)
|
||||
{
|
||||
dbgpipe("Parent sending SHIMEVENT_SETSTATI('%s', val %d, %sokay).\n", name, (int) val, okay ? "" : "!");
|
||||
return writeStatThing(fd, SHIMEVENT_SETSTATI, name, &val, sizeof (val), okay);
|
||||
} // writeSetStatI
|
||||
|
||||
static inline bool writeSetStatF(PipeType fd, const char *name, const float val, const bool okay)
|
||||
{
|
||||
dbgpipe("Parent sending SHIMEVENT_SETSTATF('%s', val %f, %sokay).\n", name, val, okay ? "" : "!");
|
||||
return writeStatThing(fd, SHIMEVENT_SETSTATF, name, &val, sizeof (val), okay);
|
||||
} // writeSetStatF
|
||||
|
||||
static inline bool writeGetStatI(PipeType fd, const char *name, const int32 val, const bool okay)
|
||||
{
|
||||
dbgpipe("Parent sending SHIMEVENT_GETSTATI('%s', val %d, %sokay).\n", name, (int) val, okay ? "" : "!");
|
||||
return writeStatThing(fd, SHIMEVENT_GETSTATI, name, &val, sizeof (val), okay);
|
||||
} // writeGetStatI
|
||||
|
||||
static inline bool writeGetStatF(PipeType fd, const char *name, const float val, const bool okay)
|
||||
{
|
||||
dbgpipe("Parent sending SHIMEVENT_GETSTATF('%s', val %f, %sokay).\n", name, val, okay ? "" : "!");
|
||||
return writeStatThing(fd, SHIMEVENT_GETSTATF, name, &val, sizeof (val), okay);
|
||||
} // writeGetStatF
|
||||
|
||||
|
||||
|
||||
SteamBridge::SteamBridge(PipeType _fd)
|
||||
: m_CallbackUserStatsReceived( this, &SteamBridge::OnUserStatsReceived )
|
||||
, m_CallbackUserStatsStored( this, &SteamBridge::OnUserStatsStored )
|
||||
, fd(_fd)
|
||||
{
|
||||
} // SteamBridge::SteamBridge
|
||||
|
||||
void SteamBridge::OnUserStatsReceived(UserStatsReceived_t *pCallback)
|
||||
{
|
||||
dbgpipe("***IN OnUserStatsReceived GAppID = %d, GUserID = %lld\n",GAppID,GUserID);
|
||||
|
||||
if (GAppID != pCallback->m_nGameID) return;
|
||||
if (GUserID != pCallback->m_steamIDUser.ConvertToUint64()) return;
|
||||
writeStatsReceived(fd, pCallback->m_eResult == k_EResultOK);
|
||||
} // SteamBridge::OnUserStatsReceived
|
||||
|
||||
void SteamBridge::OnUserStatsStored(UserStatsStored_t *pCallback)
|
||||
{
|
||||
dbgpipe("***IN OnUserStatsStored GAppID = %d, GUserID = %lld\n",GAppID,GUserID);
|
||||
|
||||
if (GAppID != pCallback->m_nGameID) return;
|
||||
writeStatsStored(fd, pCallback->m_eResult == k_EResultOK);
|
||||
} // SteamBridge::OnUserStatsStored
|
||||
|
||||
|
||||
static bool processCommand(const uint8 *buf, unsigned int buflen, PipeType fd)
|
||||
{
|
||||
dbgpipe("***IN processCommand GAppID = %d, GUserID = %lld\n",GAppID,GUserID);
|
||||
|
||||
if (buflen == 0)
|
||||
return true;
|
||||
|
||||
const ShimCmd cmd = (ShimCmd) *(buf++);
|
||||
buflen--;
|
||||
|
||||
#if STEAMSHIM_DEBUG
|
||||
if (false) {}
|
||||
#define PRINTGOTCMD(x) else if (cmd == x) printf("Parent got " #x ".\n")
|
||||
PRINTGOTCMD(SHIMCMD_BYE);
|
||||
PRINTGOTCMD(SHIMCMD_PUMP);
|
||||
PRINTGOTCMD(SHIMCMD_REQUESTSTATS);
|
||||
PRINTGOTCMD(SHIMCMD_STORESTATS);
|
||||
PRINTGOTCMD(SHIMCMD_SETACHIEVEMENT);
|
||||
PRINTGOTCMD(SHIMCMD_GETACHIEVEMENT);
|
||||
PRINTGOTCMD(SHIMCMD_RESETSTATS);
|
||||
PRINTGOTCMD(SHIMCMD_SETSTATI);
|
||||
PRINTGOTCMD(SHIMCMD_GETSTATI);
|
||||
PRINTGOTCMD(SHIMCMD_SETSTATF);
|
||||
PRINTGOTCMD(SHIMCMD_GETSTATF);
|
||||
PRINTGOTCMD(SHIMCMD_GETPERSONANAME);
|
||||
PRINTGOTCMD(SHIMCMD_GETCURRENTGAMELANGUAGE);
|
||||
#undef PRINTGOTCMD
|
||||
else printf("Parent got unknown shimcmd %d.\n", (int) cmd);
|
||||
#endif
|
||||
|
||||
switch (cmd)
|
||||
{
|
||||
case SHIMCMD_PUMP:
|
||||
SteamAPI_RunCallbacks();
|
||||
break;
|
||||
|
||||
case SHIMCMD_BYE:
|
||||
writeBye(fd);
|
||||
return false;
|
||||
|
||||
case SHIMCMD_REQUESTSTATS:
|
||||
if ((!GSteamStats) || (!GSteamStats->RequestCurrentStats()))
|
||||
writeStatsReceived(fd, false);
|
||||
// callback later.
|
||||
break;
|
||||
|
||||
case SHIMCMD_STORESTATS:
|
||||
if ((!GSteamStats) || (!GSteamStats->StoreStats()))
|
||||
writeStatsStored(fd, false);
|
||||
// callback later.
|
||||
break;
|
||||
|
||||
case SHIMCMD_SETACHIEVEMENT:
|
||||
if (buflen >= 2)
|
||||
{
|
||||
const bool enable = (*(buf++) != 0);
|
||||
const char *name = (const char *) buf; // !!! FIXME: buffer overflow possible.
|
||||
if (!GSteamStats)
|
||||
writeAchievementSet(fd, name, enable, false);
|
||||
else if (enable && !GSteamStats->SetAchievement(name))
|
||||
writeAchievementSet(fd, name, enable, false);
|
||||
else if (!enable && !GSteamStats->ClearAchievement(name))
|
||||
writeAchievementSet(fd, name, enable, false);
|
||||
else
|
||||
writeAchievementSet(fd, name, enable, true);
|
||||
} // if
|
||||
break;
|
||||
|
||||
case SHIMCMD_GETACHIEVEMENT:
|
||||
if (buflen)
|
||||
{
|
||||
const char *name = (const char *) buf; // !!! FIXME: buffer overflow possible.
|
||||
bool ach = false;
|
||||
uint32 t = 0;
|
||||
if ((GSteamStats) && (GSteamStats->GetAchievementAndUnlockTime(name, &ach, &t)))
|
||||
writeAchievementGet(fd, name, ach ? 1 : 0, t);
|
||||
else
|
||||
writeAchievementGet(fd, name, 2, 0);
|
||||
} // if
|
||||
break;
|
||||
|
||||
case SHIMCMD_RESETSTATS:
|
||||
if (buflen)
|
||||
{
|
||||
const bool alsoAch = (*(buf++) != 0);
|
||||
writeResetStats(fd, alsoAch, (GSteamStats) && (GSteamStats->ResetAllStats(alsoAch)));
|
||||
} // if
|
||||
break;
|
||||
|
||||
case SHIMCMD_SETSTATI:
|
||||
if (buflen >= 5)
|
||||
{
|
||||
const int32 val = *((int32 *) buf);
|
||||
buf += sizeof (int32);
|
||||
const char *name = (const char *) buf; // !!! FIXME: buffer overflow possible.
|
||||
writeSetStatI(fd, name, val, (GSteamStats) && (GSteamStats->SetStat(name, val)));
|
||||
} // if
|
||||
break;
|
||||
|
||||
case SHIMCMD_GETSTATI:
|
||||
if (buflen)
|
||||
{
|
||||
const char *name = (const char *) buf; // !!! FIXME: buffer overflow possible.
|
||||
int32 val = 0;
|
||||
if ((GSteamStats) && (GSteamStats->GetStat(name, &val)))
|
||||
writeGetStatI(fd, name, val, true);
|
||||
else
|
||||
writeGetStatI(fd, name, 0, false);
|
||||
} // if
|
||||
break;
|
||||
|
||||
case SHIMCMD_SETSTATF:
|
||||
if (buflen >= 5)
|
||||
{
|
||||
const float val = *((float *) buf);
|
||||
buf += sizeof (float);
|
||||
const char *name = (const char *) buf; // !!! FIXME: buffer overflow possible.
|
||||
writeSetStatF(fd, name, val, (GSteamStats) && (GSteamStats->SetStat(name, val)));
|
||||
} // if
|
||||
break;
|
||||
|
||||
case SHIMCMD_GETSTATF:
|
||||
if (buflen)
|
||||
{
|
||||
const char *name = (const char *) buf; // !!! FIXME: buffer overflow possible.
|
||||
float val = 0;
|
||||
if ((GSteamStats) && (GSteamStats->GetStat(name, &val)))
|
||||
writeGetStatF(fd, name, val, true);
|
||||
else
|
||||
writeGetStatF(fd, name, 0.0f, false);
|
||||
} // if
|
||||
break;
|
||||
|
||||
case SHIMCMD_GETPERSONANAME:
|
||||
dbgpipe("Parent sending SHIMEVENT_GETPERSONANAME.\n");
|
||||
writeString(fd, SHIMEVENT_GETPERSONANAME, GSteamFriends->GetPersonaName());
|
||||
break;
|
||||
|
||||
case SHIMCMD_GETCURRENTGAMELANGUAGE:
|
||||
dbgpipe("Parent sending SHIMEVENT_GETCURRENTGAMELANGUAGE.\n");
|
||||
writeString(fd, SHIMEVENT_GETCURRENTGAMELANGUAGE, GSteamApps->GetCurrentGameLanguage());
|
||||
break;
|
||||
} // switch
|
||||
|
||||
return true; // keep going.
|
||||
} // processCommand
|
||||
|
||||
static void processCommands(PipeType pipeParentRead, PipeType pipeParentWrite)
|
||||
{
|
||||
bool quit = false;
|
||||
uint8 buf[256];
|
||||
int br;
|
||||
|
||||
dbgpipe("***START processCommands.\n");
|
||||
|
||||
// this read blocks.
|
||||
while (!quit && ((br = readPipe(pipeParentRead, buf, sizeof (buf))) > 0))
|
||||
{
|
||||
dbgpipe("***IN processCommands readPipe found something.\n");
|
||||
while (br > 0)
|
||||
{
|
||||
const int cmdlen = (int) buf[0];
|
||||
if ((br-1) >= cmdlen)
|
||||
{
|
||||
dbgpipe("***IN processCommands processCommand.\n");
|
||||
if (!processCommand(buf+1, cmdlen, pipeParentWrite))
|
||||
{
|
||||
quit = true;
|
||||
break;
|
||||
} // if
|
||||
|
||||
br -= cmdlen + 1;
|
||||
if (br > 0)
|
||||
memmove(buf, buf+cmdlen+1, br);
|
||||
} // if
|
||||
else // get more data.
|
||||
{
|
||||
dbgpipe("***IN processCommands readPipe#2....\n");
|
||||
const int morebr = readPipe(pipeParentRead, buf+br, sizeof (buf) - br);
|
||||
if (morebr <= 0)
|
||||
{
|
||||
quit = true; // uhoh.
|
||||
break;
|
||||
} // if
|
||||
br += morebr;
|
||||
} // else
|
||||
} // while
|
||||
} // while
|
||||
dbgpipe("***END processCommands.\n");
|
||||
} // processCommands
|
||||
|
||||
static bool setEnvironmentVars(PipeType pipeChildRead, PipeType pipeChildWrite)
|
||||
{
|
||||
char buf[64];
|
||||
snprintf(buf, sizeof (buf), LLUFMT, (unsigned long long) pipeChildRead);
|
||||
if (!setEnvVar("STEAMSHIM_READHANDLE", buf))
|
||||
return false;
|
||||
|
||||
snprintf(buf, sizeof (buf), LLUFMT, (unsigned long long) pipeChildWrite);
|
||||
if (!setEnvVar("STEAMSHIM_WRITEHANDLE", buf))
|
||||
return false;
|
||||
|
||||
return true;
|
||||
} // setEnvironmentVars
|
||||
|
||||
static bool initSteamworks(PipeType fd)
|
||||
{
|
||||
dbgpipe("***IN initSteamworks Start\n");
|
||||
|
||||
// this can fail for many reasons:
|
||||
// - you forgot a steam_appid.txt in the current working directory.
|
||||
// - you don't have Steam running
|
||||
// - you don't own the game listed in steam_appid.txt
|
||||
if (!SteamAPI_Init())
|
||||
return 0;
|
||||
|
||||
GSteamStats = SteamUserStats();
|
||||
GSteamUtils = SteamUtils();
|
||||
GSteamUser = SteamUser();
|
||||
GSteamFriends = SteamFriends();
|
||||
GSteamApps = SteamApps();
|
||||
|
||||
GAppID = GSteamUtils ? GSteamUtils->GetAppID() : 0;
|
||||
GUserID = GSteamUser ? GSteamUser->GetSteamID().ConvertToUint64() : 0;
|
||||
|
||||
dbgpipe("***IN initSteamworks GAppID = %d, GUserID = %lld\n",GAppID,GUserID);
|
||||
|
||||
GSteamBridge = new SteamBridge(fd);
|
||||
|
||||
return 1;
|
||||
} // initSteamworks
|
||||
|
||||
static void deinitSteamworks(void)
|
||||
{
|
||||
dbgpipe("***IN deinitSteamworks GAppID = %d, GUserID = %lld\n",GAppID,GUserID);
|
||||
|
||||
SteamAPI_Shutdown();
|
||||
delete GSteamBridge;
|
||||
GSteamBridge = NULL;
|
||||
GSteamStats = NULL;
|
||||
GSteamUtils= NULL;
|
||||
GSteamUser = NULL;
|
||||
} // deinitSteamworks
|
||||
|
||||
static int mainline(void)
|
||||
{
|
||||
PipeType pipeParentRead = NULLPIPE;
|
||||
PipeType pipeParentWrite = NULLPIPE;
|
||||
PipeType pipeChildRead = NULLPIPE;
|
||||
PipeType pipeChildWrite = NULLPIPE;
|
||||
ProcessType childPid;
|
||||
|
||||
printf("#2 =============> Megaglest Parent starting mainline.\n");
|
||||
|
||||
#ifdef STEAMSHIM_DEBUG
|
||||
printf("=============> Megaglest Parent starting mainline.\n");
|
||||
|
||||
#endif
|
||||
dbgpipe("Parent starting mainline.\n");
|
||||
|
||||
if (!createPipes(&pipeParentRead, &pipeParentWrite, &pipeChildRead, &pipeChildWrite))
|
||||
fail("Failed to create application pipes");
|
||||
else if (!initSteamworks(pipeParentWrite))
|
||||
fail("Failed to initialize Steamworks");
|
||||
else if (!setEnvironmentVars(pipeChildRead, pipeChildWrite))
|
||||
fail("Failed to set environment variables");
|
||||
else if (!launchChild(&childPid))
|
||||
fail("Failed to launch application");
|
||||
|
||||
dbgpipe("Parent ending mainline\n");
|
||||
|
||||
// Close the ends of the pipes that the child will use; we don't need them.
|
||||
closePipe(pipeChildRead);
|
||||
closePipe(pipeChildWrite);
|
||||
pipeChildRead = pipeChildWrite = NULLPIPE;
|
||||
|
||||
dbgpipe("Parent in command processing loop.\n");
|
||||
|
||||
// Now, we block for instructions until the pipe fails (child closed it or
|
||||
// terminated/crashed).
|
||||
processCommands(pipeParentRead, pipeParentWrite);
|
||||
|
||||
dbgpipe("Parent shutting down.\n");
|
||||
|
||||
// Close our ends of the pipes.
|
||||
writeBye(pipeParentWrite);
|
||||
closePipe(pipeParentRead);
|
||||
closePipe(pipeParentWrite);
|
||||
|
||||
deinitSteamworks();
|
||||
|
||||
dbgpipe("Parent waiting on child process.\n");
|
||||
|
||||
// Wait for the child to terminate, close the child process handles.
|
||||
const int retval = closeProcess(&childPid);
|
||||
|
||||
dbgpipe("Parent exiting mainline (child exit code %d).\n", retval);
|
||||
|
||||
return retval;
|
||||
} // mainline
|
||||
|
||||
// end of steamshim_parent.cpp ...
|
||||
Reference in New Issue
Block a user