Rich Mayo wrote:
I am attempting to compile and run a very simple shared memory server
and client. Although my source compiles with no problem, when I attempt
to execute, the following is my only output:
Bad system call
I have conducted some experiments and the problem occurs with the very
first line in my code. The following is the server code up to line that
causes the error:
/* shm_server.c: Server program to demonstrate shared memory. */
#include "shm_server.h"
int main(void)
{
char * shm = NULL; // Shared Memory Pointer
char * s = NULL; // Dynamic Pointer
key_t key = 5678; // shared memory segment name is '5678'
char c; // Temporary char
int shmid; // Shared Memory Segment ID
/* Create the segment. */
if ((shmid = shmget (key, SHMSZ, IPC_CREAT | 0666)) < 0)
{
fprintf (stderr, "shmget failed\n");
exit (1);
}
...
There appears to be something wrong with "shmget". Any suggestions??
Absolutely! Check out the section in the User's Guide regarding
cygserver <http://cygwin.com/cygwin-ug-net/using-cygserver.html>.
--
Larry Hall http://www.rfk.com
RFK Partners, Inc. (508) 893-9779 - RFK Office
838 Washington Street (508) 893-9889 - FAX
Holliston, MA 01746
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