Creates or opens a named semaphore with the specified name
Syntax
#include <prshma.h> NSPR_API( PRFileMap *) PR_OpenAnonFileMap( const char *dirName, PRSize size, PRFileMapProtect prot );
Parameters
The function has the following parameters:
dirName- A pointer to a directory name that will contain the anonymous file.
size- The size of the shared memory.
prot- How the shared memory is mapped.
Returns
Pointer to PRFileMap or NULL on error.
Description
If the shared memory already exists, a handle is returned to that shared memory object.
On Unix platforms, PR_OpenAnonFileMap uses dirName as a directory name, without the trailing '/', to contain the anonymous file. A filename is generated for the name.
On Windows platforms, dirName is ignored.