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utils.c: Add lxc_wait_for_pid_status routine that returns exit code
Signed-off-by: Christian Seiler <christian@iwakd.de> Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
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@ -265,3 +265,19 @@ again:
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return -1;
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return 0;
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}
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int lxc_wait_for_pid_status(pid_t pid)
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{
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int status, ret;
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again:
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ret = waitpid(pid, &status, 0);
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if (ret == -1) {
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if (errno == EINTR)
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goto again;
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return -1;
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}
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if (ret != pid)
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goto again;
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return status;
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}
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@ -23,6 +23,8 @@
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#ifndef _utils_h
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#define _utils_h
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#include <sys/types.h>
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extern int lxc_setup_fs(void);
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extern int get_u16(unsigned short *val, const char *arg, int base);
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extern int mkdir_p(const char *dir, mode_t mode);
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@ -64,5 +66,6 @@ extern int __build_bug_on_failed;
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* wait on a child we forked
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*/
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extern int wait_for_pid(pid_t pid);
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extern int lxc_wait_for_pid_status(pid_t pid);
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#endif
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