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Unified Diff: mozilla/security/nss/lib/base/nssbase.h

Issue 10961060: Update NSS to NSS 3.14 Beta 1. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/nss/
Patch Set: Add the NSS snapshot timestamp to README.chromium and nss-checkout.sh Created 8 years, 3 months ago
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Index: mozilla/security/nss/lib/base/nssbase.h
===================================================================
--- mozilla/security/nss/lib/base/nssbase.h (revision 158129)
+++ mozilla/security/nss/lib/base/nssbase.h (working copy)
@@ -29,6 +29,9 @@
*
* NSSArena_Create -- constructor
* NSSArena_Destroy
+ * NSS_ZAlloc
+ * NSS_ZRealloc
+ * NSS_ZFreeIf
*/
/*
@@ -133,6 +136,135 @@
void
);
+/*
+ * NSS_ZNEW
+ *
+ * This preprocessor macro will allocate memory for a new object
+ * of the specified type with nss_ZAlloc, and will cast the
+ * return value appropriately. If the optional arena argument is
+ * non-null, the memory will be obtained from that arena; otherwise,
+ * the memory will be obtained from the heap. This routine may
+ * return NULL upon error, in which case it will have set an error
+ * upon the error stack.
+ *
+ * The error may be one of the following values:
+ * NSS_ERROR_INVALID_ARENA
+ * NSS_ERROR_NO_MEMORY
+ *
+ * Return value:
+ * NULL upon error
+ * A pointer to the new segment of zeroed memory
+ */
+
+/* The following line exceeds 72 characters, but emacs barfs if we split it. */
+#define NSS_ZNEW(arenaOpt, type) ((type *)NSS_ZAlloc((arenaOpt), sizeof(type)))
+
+/*
+ * NSS_ZNEWARRAY
+ *
+ * This preprocessor macro will allocate memory for an array of
+ * new objects, and will cast the return value appropriately.
+ * If the optional arena argument is non-null, the memory will
+ * be obtained from that arena; otherwise, the memory will be
+ * obtained from the heap. This routine may return NULL upon
+ * error, in which case it will have set an error upon the error
+ * stack. The array size may be specified as zero.
+ *
+ * The error may be one of the following values:
+ * NSS_ERROR_INVALID_ARENA
+ * NSS_ERROR_NO_MEMORY
+ *
+ * Return value:
+ * NULL upon error
+ * A pointer to the new segment of zeroed memory
+ */
+
+/* The following line exceeds 72 characters, but emacs barfs if we split it. */
+#define NSS_ZNEWARRAY(arenaOpt, type, quantity) ((type *)NSS_ZAlloc((arenaOpt), sizeof(type) * (quantity)))
+
+
+/*
+ * NSS_ZAlloc
+ *
+ * This routine allocates and zeroes a section of memory of the
+ * size, and returns to the caller a pointer to that memory. If
+ * the optional arena argument is non-null, the memory will be
+ * obtained from that arena; otherwise, the memory will be obtained
+ * from the heap. This routine may return NULL upon error, in
+ * which case it will have set an error upon the error stack. The
+ * value specified for size may be zero; in which case a valid
+ * zero-length block of memory will be allocated. This block may
+ * be expanded by calling NSS_ZRealloc.
+ *
+ * The error may be one of the following values:
+ * NSS_ERROR_INVALID_ARENA
+ * NSS_ERROR_NO_MEMORY
+ * NSS_ERROR_ARENA_MARKED_BY_ANOTHER_THREAD
+ *
+ * Return value:
+ * NULL upon error
+ * A pointer to the new segment of zeroed memory
+ */
+
+NSS_EXTERN void *
+NSS_ZAlloc
+(
+ NSSArena *arenaOpt,
+ PRUint32 size
+);
+
+/*
+ * NSS_ZRealloc
+ *
+ * This routine reallocates a block of memory obtained by calling
+ * nss_ZAlloc or nss_ZRealloc. The portion of memory
+ * between the new and old sizes -- which is either being newly
+ * obtained or released -- is in either case zeroed. This routine
+ * may return NULL upon failure, in which case it will have placed
+ * an error on the error stack.
+ *
+ * The error may be one of the following values:
+ * NSS_ERROR_INVALID_POINTER
+ * NSS_ERROR_NO_MEMORY
+ * NSS_ERROR_ARENA_MARKED_BY_ANOTHER_THREAD
+ *
+ * Return value:
+ * NULL upon error
+ * A pointer to the replacement segment of memory
+ */
+
+NSS_EXTERN void *
+NSS_ZRealloc
+(
+ void *pointer,
+ PRUint32 newSize
+);
+
+
+/*
+ * NSS_ZFreeIf
+ *
+ * If the specified pointer is non-null, then the region of memory
+ * to which it points -- which must have been allocated with
+ * nss_ZAlloc -- will be zeroed and released. This routine
+ * returns a PRStatus value; if successful, it will return PR_SUCCESS.
+ * If unsuccessful, it will set an error on the error stack and return
+ * PR_FAILURE.
+ *
+ * The error may be one of the following values:
+ * NSS_ERROR_INVALID_POINTER
+ *
+ * Return value:
+ * PR_SUCCESS
+ * PR_FAILURE
+ */
+
+NSS_EXTERN PRStatus
+NSS_ZFreeIf
+(
+ void *pointer
+);
+
PR_END_EXTERN_C
#endif /* NSSBASE_H */
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