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darwin: task_info() cannot fail

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And if it does: assert, don't return errno. It's a mach function, it
doesn't set errno.
This commit is contained in:
Ben Noordhuis 2013-05-20 14:35:10 +02:00
parent e515d71592
commit a1cb52a3eb
1 changed files with 14 additions and 12 deletions
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26
src/unix/darwin.c
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@ -257,19 +257,21 @@ void uv_loadavg(double avg[3]) {
uv_err_t uv_resident_set_memory(size_t* rss) {
struct task_basic_info t_info;
mach_msg_type_number_t t_info_count = TASK_BASIC_INFO_COUNT;
mach_msg_type_number_t count;
task_basic_info_data_t info;
kern_return_t err;
int r = task_info(mach_task_self(),
TASK_BASIC_INFO,
(task_info_t)&t_info,
&t_info_count);
if (r != KERN_SUCCESS) {
return uv__new_sys_error(errno);
}
*rss = t_info.resident_size;
count = TASK_BASIC_INFO_COUNT;
err = task_info(mach_task_self(),
TASK_BASIC_INFO,
(task_info_t) &info,
&count);
(void) &err;
/* task_info(TASK_BASIC_INFO) cannot really fail. Anything other than
* KERN_SUCCESS implies a libuv bug.
*/
assert(err == KERN_SUCCESS);
*rss = info.resident_size;
return uv_ok_;
}