Im trying to write a program atm which uses mutexes to control thread access to a certain code section ( the critical section).
However, whenever I compile the code using gcc I get the following message from gcc
Unresolved text symbol "pthread_mutex_lock"
Unresolved text symbol "pthread_mutex_unlock"
I initalise my mutex as follows, after including <pthread.h> in my code
Code:
pthread_mutex_init(&cs_mutex,NULL);
The critical section is accessed in the following way. Note that this code segment is generic as my threads perform the same functionality
Code:
pthread_mutex_lock(&cs_mutex);
/*
Do critical section stuff here
*/
pthread_mutex_unlock(&cs_mutex);
I have included the -lpthread (which is needed to support thread functionality in the program ) in the compiling command, so I cannot understand why my code is not compiling
I mis-spelt thread as thead (slaps himself over the head) in pthread_mutex_lock and pthread_mutex_unlock which was why the compiler couldn't identify it :P
First of all -- thanks for being patient with me. I hope I'm submitting this correctly. Also I haven't done UNIX Admin since the early 1990's. I'm actually a DBA. But, since I'm the one in the office with the UNIX experience, I'm the SA.
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