Changeset 1882 for trunk

Timestamp:

Apr 24, 2005, 1:21:09 AM (20 years ago)

Author:

bird

Message:

Minimum and default stack sizes.

File:

• trunk/src/emx/src/lib/process/beginthr.c (modified) (2 diffs, 1 prop)

trunk/src/emx/src/lib/process/beginthr.c

@@ -15 +15 @@
 #define __LIBC_LOG_GROUP __LIBC_LOG_GRP_THREAD
 #include <InnoTekLIBC/logstrict.h>
+#include <386/builtin.h>
 
 /**
@@ -55 +56 @@
     __LIBC_PTHREAD  pThrd;
     FS_VAR();
+
+    /*
+     * Initialize the minimum stack mark on the first call run.
+     */
+    static size_t   cbStackMin;
+    if (!cbStackMin)
+    {
+        const char *psz = getenv("LIBC_THREAD_MIN_STACK_SIZE");
+        int cb = 4096;
+        if (psz)
+        {
+            cb = atol(psz);
+            if (!cb)
+                cb = 512*1024;
+        }
+        __atomic_xchg((unsigned volatile *)&cbStackMin, cb);
+    }
+
+    /*
+     * Adjust the stack size.
+     */
+    if (!cbStack)
+        cbStack = 512*1024;             /* Default stack size is 512 KB. */
+    if (cbStack < cbStackMin)
+        cbStack = cbStackMin;
 
     /*