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make aio_suspend a cancellation point and properly handle cancellation

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This commit is contained in:
Rich Felker 2015-03-02 18:11:28 -05:00
parent 0fc317d83c
commit 5451d95715
1 changed files with 9 additions and 3 deletions
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12
src/aio/aio_suspend.c
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@ -15,6 +15,8 @@ int aio_suspend(const struct aiocb *const cbs[], int cnt, const struct timespec
int nzcnt = 0;
const struct aiocb *cb = 0;
pthread_testcancel();
if (cnt<0) {
errno = EINVAL;
return -1;
@ -61,10 +63,14 @@ int aio_suspend(const struct aiocb *const cbs[], int cnt, const struct timespec
break;
}
ret = __timedwait(pfut, expect, CLOCK_MONOTONIC, ts?&at:0, 1);
ret = __timedwait_cp(pfut, expect, CLOCK_MONOTONIC, ts?&at:0, 1);
if (ret) {
errno = ret==ETIMEDOUT ? EAGAIN : ret;
switch (ret) {
case ETIMEDOUT:
ret = EAGAIN;
case ECANCELED:
case EINTR:
errno = ret;
return -1;
}
}