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Better comments for bioWaitPendingJobsLE

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antirez 2011-09-14 19:05:21 +02:00
parent fde4e4c428
commit 91de5421b2
1 changed files with 9 additions and 1 deletions
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10
src/bio.c
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@ -140,7 +140,15 @@ unsigned long long bioPendingJobsOfType(int type) {
* less or equal to the specified number. * less or equal to the specified number.
* *
* This function may block for long time, it should only be used to perform * This function may block for long time, it should only be used to perform
* special tasks like AOF rewriting or alike. */ * the following tasks:
*
* 1) To avoid that the main thread is pushing jobs of a given time so fast
* that the background thread can't process them at the same speed.
* So before creating a new job of a given type the main thread should
* call something like: bioWaitPendingJobsLE(job_type,10000);
* 2) In order to perform special operations that make it necessary to be sure
* no one is touching shared resourced in the background.
*/
void bioWaitPendingJobsLE(int type, unsigned long long num) { void bioWaitPendingJobsLE(int type, unsigned long long num) {
unsigned long long iteration = 0; unsigned long long iteration = 0;