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On Sat, 29 Nov 2003 00:37:09 +0000 expatriate lbox@nellgc.plus.com wrote:

praisetazio wrote:

...

I got this line:

... buf->lockstart = PTHREAD_MUTEX_INITIALIZER; ...

Gcc returns me an error: /home/praise/progetti/beyond/src/buffer.c:33: error: parse error before '{' token

A substitution with the following line

   pthread_mutex_init(&buf->lockend, NULL);

work properly. When does the '{' come out? Am I supposed to use PTHREAD_MUTEX_INITIALIZER only at initialization?

Praise

Apparently you are correct based on what ptrhead.h shows:

#define PTHREAD_MUTEX_INITIALIZER {0, 0, 0, PTHREAD_MUTEX_TIMED_NP, __LOCK_INITIALIZER}

then you can only do something like pthread_mutex_t pmt = PTHREAD_MUTEX_INITIALIZER;

Just to add a few things. PTHREAD_MUTEX_INITIALIZER is intended for static initialization. If you want to dynamically initialize a mutex (or condition), you should use the appropriate function. For a mutex: int pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *mutexattr); mutexattr can be NULL.

- -- Jerry Feldman gaf@blu.org Boston Linux and Unix user group http://www.blu.org PGP key id:C5061EA9 PGP Key fingerprint:053C 73EC 3AC1 5C44 3E14 9245 FB00 3ED5 C506 1EA9