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Diffstat (limited to 'distrib/sdl-1.2.15/src/thread/pth/SDL_systhread.c')
-rw-r--r-- | distrib/sdl-1.2.15/src/thread/pth/SDL_systhread.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/thread/pth/SDL_systhread.c b/distrib/sdl-1.2.15/src/thread/pth/SDL_systhread.c new file mode 100644 index 0000000..bfccaf3 --- /dev/null +++ b/distrib/sdl-1.2.15/src/thread/pth/SDL_systhread.c @@ -0,0 +1,103 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2012 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Sam Lantinga + slouken@libsdl.org +*/ +#include "SDL_config.h" + +/* + * GNU pth threads + * + * Patrice Mandin + */ + +#include <pth.h> +#include <signal.h> + +#include "SDL_thread.h" +#include "../SDL_thread_c.h" +#include "../SDL_systhread.h" + +/* List of signals to mask in the subthreads */ +static int sig_list[] = { + SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGALRM, SIGTERM, SIGCHLD, SIGWINCH, + SIGVTALRM, SIGPROF, 0 +}; + +static void *RunThread(void *data) +{ + SDL_RunThread(data); + pth_exit((void*)0); + return((void *)0); /* Prevent compiler warning */ +} + +int SDL_SYS_CreateThread(SDL_Thread *thread, void *args) +{ + pth_attr_t type; + + /* Create a new attribute */ + type = pth_attr_new(); + if ( type == NULL ) { + SDL_SetError("Couldn't initialize pth attributes"); + return(-1); + } + pth_attr_set(type, PTH_ATTR_JOINABLE, TRUE); + + /* Create the thread and go! */ + thread->handle = pth_spawn(type, RunThread, args); + if ( thread->handle == NULL ) { + SDL_SetError("Not enough resources to create thread"); + return(-1); + } + return(0); +} + +void SDL_SYS_SetupThread(void) +{ + int i; + sigset_t mask; + int oldstate; + + /* Mask asynchronous signals for this thread */ + sigemptyset(&mask); + for ( i=0; sig_list[i]; ++i ) { + sigaddset(&mask, sig_list[i]); + } + pth_sigmask(SIG_BLOCK, &mask, 0); + + /* Allow ourselves to be asynchronously cancelled */ + pth_cancel_state(PTH_CANCEL_ASYNCHRONOUS, &oldstate); +} + +/* WARNING: This may not work for systems with 64-bit pid_t */ +Uint32 SDL_ThreadID(void) +{ + return((Uint32)pth_self()); +} + +void SDL_SYS_WaitThread(SDL_Thread *thread) +{ + pth_join(thread->handle, NULL); +} + +void SDL_SYS_KillThread(SDL_Thread *thread) +{ + pth_cancel(thread->handle); + pth_join(thread->handle, NULL); +} |