Changeset 180 for trunk/include/regfi.h

Timestamp:

03/14/10 16:02:38 (14 years ago)

Author:

tim

Message:

Added locks to make transactions on REGFI_FILE objects thread safe

Added initial version of a threading smoke test

File:

• trunk/include/regfi.h (modified) (3 diffs)

trunk/include/regfi.h

@@ -69 +69 @@
 #include <unistd.h>
 #include <iconv.h>
+#include <pthread.h>
 
 #include "byteorder.h"
@@ -674 +675 @@
   REGFI_RAW_FILE* cb;
 
+  /* Mutex for all cb access.  This is done to prevent one thread from moving
+   * the file offset while another thread is in the middle of a multi-read
+   * parsing transaction */
+  pthread_mutex_t* cb_lock;
+
   /* For sanity checking (not part of the registry header) */
   uint32_t file_length;
@@ -680 +686 @@
   range_list* hbins;
 
+  /* Multiple read access allowed, write access is exclusive */
+  pthread_rwlock_t* hbins_lock;
+
   /* SK record cached since they're repeatedly reused */
   lru_cache* sk_cache;
+
+  /* Need exclusive access for LRUs, since lookups make changes */
+  pthread_mutex_t* sk_lock;
 
   /* Error/warning/info messages returned by lower layer functions */