diff options
Diffstat (limited to 'src/lib9/await.c')
| -rw-r--r-- | src/lib9/await.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/src/lib9/await.c b/src/lib9/await.c index 5f2d58ba..a97c6d18 100644 --- a/src/lib9/await.c +++ b/src/lib9/await.c @@ -71,8 +71,8 @@ _p9strsig(char *s) return 0; } -int -await(char *str, int n) +static int +_await(char *str, int n, int opt) { int pid, status, cd; struct rusage ru; @@ -80,8 +80,8 @@ await(char *str, int n) ulong u, s; for(;;){ - pid = wait3(&status, 0, &ru); - if(pid < 0) + pid = wait3(&status, opt, &ru); + if(pid <= 0) return -1; 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); @@ -103,3 +103,16 @@ await(char *str, int n) } } } + +int +await(char *str, int n) +{ + return _await(str, n, 0); +} + +int +awaitnohang(char *str, int n) +{ + return _await(str, n, WNOHANG); +} + |