mirror of
https://github.com/Q3Rally-Team/q3rally.git
synced 2024-11-29 23:22:55 +00:00
866aa787cf
Update to ioquake3 revision 3306 from 1951 of the ioq3 Github repo via subversion. Over 4 years of changes.
86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
/*
|
|
The code in this file is in the public domain. The rest of ioquake3
|
|
is licensed under the GPLv2. Do not mingle code, please!
|
|
*/
|
|
|
|
#ifdef USE_AUTOUPDATER
|
|
# ifndef AUTOUPDATER_BIN
|
|
# error The build system should have defined AUTOUPDATER_BIN
|
|
# endif
|
|
|
|
# ifdef _WIN32
|
|
# define WIN32_LEAN_AND_MEAN 1
|
|
# include <windows.h>
|
|
# else
|
|
# include <unistd.h>
|
|
# endif
|
|
|
|
# include <stdio.h>
|
|
# include <string.h>
|
|
#endif
|
|
|
|
void Sys_LaunchAutoupdater(int argc, char **argv)
|
|
{
|
|
#ifdef USE_AUTOUPDATER
|
|
#ifdef _WIN32
|
|
{
|
|
/* We don't need the Unix pipe() tapdance here because Windows lets children wait on parent processes. */
|
|
PROCESS_INFORMATION procinfo;
|
|
STARTUPINFO startinfo;
|
|
char cmdline[128];
|
|
memset(&procinfo, '\0', sizeof (procinfo));
|
|
memset(&startinfo, '\0', sizeof (startinfo));
|
|
startinfo.cb = sizeof (startinfo);
|
|
sprintf(cmdline, "" AUTOUPDATER_BIN " --waitpid %u", (unsigned int) GetCurrentProcessId());
|
|
|
|
if (CreateProcessA(AUTOUPDATER_BIN, cmdline, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &startinfo, &procinfo))
|
|
{
|
|
/* close handles now so child cleans up immediately if nothing to do */
|
|
CloseHandle(procinfo.hProcess);
|
|
CloseHandle(procinfo.hThread);
|
|
}
|
|
}
|
|
#else
|
|
int updater_pipes[2];
|
|
if (pipe(updater_pipes) == 0)
|
|
{
|
|
pid_t pid = fork();
|
|
if (pid == -1) /* failure, oh well. */
|
|
{
|
|
close(updater_pipes[0]);
|
|
close(updater_pipes[1]);
|
|
}
|
|
else if (pid == 0) /* child process */
|
|
{
|
|
close(updater_pipes[1]); /* don't need write end. */
|
|
if (dup2(updater_pipes[0], 3) != -1)
|
|
{
|
|
char pidstr[64];
|
|
char *ptr = strrchr(argv[0], '/');
|
|
if (ptr)
|
|
*ptr = '\0';
|
|
if (chdir(argv[0]) == -1) {
|
|
_exit(1); /* oh well. */
|
|
}
|
|
#ifdef __APPLE__
|
|
if (chdir("../..") == -1) { /* put this at base of app bundle so paths make sense later. */
|
|
_exit(1); /* oh well. */
|
|
}
|
|
#endif
|
|
snprintf(pidstr, sizeof (pidstr), "%lld", (long long) getppid());
|
|
execl(AUTOUPDATER_BIN, AUTOUPDATER_BIN, "--waitpid", pidstr, NULL);
|
|
}
|
|
_exit(0); /* oh well. */
|
|
}
|
|
else /* parent process */
|
|
{
|
|
/* leave the write end open until we terminate so updater can block on it. */
|
|
close(updater_pipes[0]);
|
|
}
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
(void) argc; (void) argv; /* possibly unused. Pacify compilers. */
|
|
}
|
|
|