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Diffstat (limited to 'src/lib9/await.c')
| -rw-r--r-- | src/lib9/await.c | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/src/lib9/await.c b/src/lib9/await.c deleted file mode 100644 index 90be598a1..000000000 --- a/src/lib9/await.c +++ /dev/null @@ -1,179 +0,0 @@ -/* -Plan 9 from User Space src/lib9/await.c -http://code.swtch.com/plan9port/src/tip/src/lib9/await.c - -Copyright 2001-2007 Russ Cox. All Rights Reserved. -Portions Copyright 2009 The Go Authors. All Rights Reserved. - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -THE SOFTWARE. -*/ - -#define NOPLAN9DEFINES -#include <u.h> -#include <libc.h> - -#include <signal.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <sys/time.h> -#include <sys/resource.h> - -#ifndef WCOREDUMP /* not on Mac OS X Tiger */ -#define WCOREDUMP(status) 0 -#endif - -static struct { - int sig; - char *str; -} tab[] = { - SIGHUP, "hangup", - SIGINT, "interrupt", - SIGQUIT, "quit", - SIGILL, "sys: illegal instruction", - SIGTRAP, "sys: breakpoint", - SIGABRT, "sys: abort", -#ifdef SIGEMT - SIGEMT, "sys: emulate instruction executed", -#endif - SIGFPE, "sys: fp: trap", - SIGKILL, "sys: kill", - SIGBUS, "sys: bus error", - SIGSEGV, "sys: segmentation violation", - SIGALRM, "alarm", - SIGTERM, "kill", - SIGURG, "sys: urgent condition on socket", - SIGSTOP, "sys: stop", - SIGTSTP, "sys: tstp", - SIGCONT, "sys: cont", - SIGCHLD, "sys: child", - SIGTTIN, "sys: ttin", - SIGTTOU, "sys: ttou", -#ifdef SIGIO /* not on Mac OS X Tiger */ - SIGIO, "sys: i/o possible on fd", -#endif - SIGXCPU, "sys: cpu time limit exceeded", - SIGXFSZ, "sys: file size limit exceeded", - SIGVTALRM, "sys: virtual time alarm", - SIGPROF, "sys: profiling timer alarm", -#ifdef SIGWINCH /* not on Mac OS X Tiger */ - SIGWINCH, "sys: window size change", -#endif -#ifdef SIGINFO - SIGINFO, "sys: status request", -#endif - SIGUSR1, "sys: usr1", - SIGUSR2, "sys: usr2", - SIGPIPE, "sys: write on closed pipe", -}; - -char* -_p9sigstr(int sig, char *tmp) -{ - int i; - - for(i=0; i<nelem(tab); i++) - if(tab[i].sig == sig) - return tab[i].str; - if(tmp == nil) - return nil; - sprint(tmp, "sys: signal %d", sig); - return tmp; -} - -int -_p9strsig(char *s) -{ - int i; - - for(i=0; i<nelem(tab); i++) - if(strcmp(s, tab[i].str) == 0) - return tab[i].sig; - return 0; -} - -static Waitmsg* -_wait(int pid4, int opt) -{ - int pid, status, cd; - struct rusage ru; - char tmp[64]; - ulong u, s; - Waitmsg *w; - - w = malloc(sizeof *w + 200); - if(w == nil) - return nil; - memset(w, 0, sizeof *w); - w->msg = (char*)&w[1]; - - for(;;){ - /* On Linux, pid==-1 means anyone; on SunOS, it's pid==0. */ - if(pid4 == -1) - pid = wait3(&status, opt, &ru); - else - pid = wait4(pid4, &status, opt, &ru); - if(pid <= 0) { - free(w); - return nil; - } - u = ru.ru_utime.tv_sec*1000+((ru.ru_utime.tv_usec+500)/1000); - s = ru.ru_stime.tv_sec*1000+((ru.ru_stime.tv_usec+500)/1000); - w->pid = pid; - w->time[0] = u; - w->time[1] = s; - w->time[2] = u+s; - if(WIFEXITED(status)){ - if(status) - sprint(w->msg, "%d", status); - return w; - } - if(WIFSIGNALED(status)){ - cd = WCOREDUMP(status); - sprint(w->msg, "signal: %s", _p9sigstr(WTERMSIG(status), tmp)); - if(cd) - strcat(w->msg, " (core dumped)"); - return w; - } - } -} - -Waitmsg* -p9wait(void) -{ - return _wait(-1, 0); -} - -Waitmsg* -p9waitfor(int pid) -{ - return _wait(pid, 0); -} - -Waitmsg* -p9waitnohang(void) -{ - return _wait(-1, WNOHANG); -} - -int -p9waitpid(void) -{ - int status; - return wait(&status); -} |