Changeset 4234:ee0035abd1ff in roaraudio

Timestamp:

08/25/10 01:44:54 (14 years ago)

Author:

phi

Branch:

default

Phase:

public

Message:

done some work on the memlock functions

Location:

roard

Files:

• include/memlock.h (modified) (1 diff)
• memlock.c (modified) (2 diffs)

roard/include/memlock.h

@@ -38 +38 @@
 int memlock_str2level(const char * str);
 int memlock_set_level(int level);
+int memlock_register(int level, void * addr, size_t len);
 void memlock_unload();
 void memlock_reload();

roard/memlock.c

@@ -26 +26 @@
 #include "roard.h"
 
+#define MAX_SEGMENTS 16
+
+struct memlock {
+ int level;
+ void * addr;
+ size_t len;
+};
+
+static struct memlock memlock_table[MAX_SEGMENTS];
+
+static volatile int memlock_table_inited = 0;
+
+static void memlock_table_init (void) {
+ if ( memlock_table_inited )
+  return;
+
+ memset(memlock_table, 0, sizeof(memlock_table));
+
+ memlock_table_inited = 1;
+
+ memlock_register(MEMLOCK_MEDIUM, memlock_table, sizeof(memlock_table));
+}
+
+int memlock_register(int level, void * addr, size_t len) {
+ int i;
+
+ if ( !memlock_table_inited )
+  memlock_table_init();
+
+ for (i = 0; i < MAX_SEGMENTS; i++) {
+  if ( memlock_table[i].addr == NULL ) {
+   memlock_table[i].level = level;
+   memlock_table[i].addr  = addr;
+   memlock_table[i].len   = len;
+   return 0;
+  }
+ }
+
+ return -1;
+}
+
 int memlock_str2level(const char * str) {
  if ( str == NULL )
@@ -48 +89 @@
  static int old_level = MEMLOCK_NONE;
 
+ if ( !memlock_table_inited )
+  memlock_table_init();
+
  if ( level == old_level )
   return 0;