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35.1.1 Return Values

The ISO C thread specification provides the following enumeration constants for return values from functions in the API:

thrd_timedout ¶

A specified time was reached without acquiring the requested resource, usually a mutex or condition variable.

thrd_success ¶

The requested operation succeeded.

thrd_busy ¶

The requested operation failed because a requested resource is already in use.

thrd_error ¶

The requested operation failed.

thrd_nomem ¶

The requested operation failed because it was unable to allocate enough memory.