Changeset 1461 for trunk/src/emx/include/InnoTekLIBC/sharedpm.h

Timestamp:

Sep 6, 2004, 6:22:46 AM (21 years ago)

Author:

bird

Message:

Fixing, extending, optimizing.

File:

• trunk/src/emx/include/InnoTekLIBC/sharedpm.h (modified) (3 diffs, 1 prop)

trunk/src/emx/include/InnoTekLIBC/sharedpm.h

@@ -233 +233 @@
     /** Pointer to fork handle which a child should use when spawned by fork(). */
     void                       *pvForkHandle;
+    /** Creation timestamp. */
+    unsigned                    uTimestamp;
 
     /** Reserved pool pointer field with default value 0. */
-    unsigned                    aReserved[40 - 13];
+    unsigned                    aReserved[40 - 14];
 
     /** Number of possible pointers to shared memory starting at pvInherit.
@@ -243 +245 @@
     /** Pointer to data inherited from the parent process. */
     __LIBC_PSPMINHERIT volatile pInherit;
+    /** Pointer to data inherited from the parent process when it's locked.
+     * When locked pInherit is NULL and this member points to the data instead.
+     * This prevents spmAlloc() from reclaiming it while it's in use. */
+    __LIBC_PSPMINHERIT volatile pInheritLocked;
 } __LIBC_SPMPROCESS, *__LIBC_PSPMPROCESS;
 
@@ -367 +373 @@
 
 /**
+ * Gets the inherit data associated with the current process.
+ * This call prevents it from being release by underrun handling.
+ *
+ * @returns Pointer to inherit data.
+ *          The caller must call __libc_spmInheritRelease() when done.
+ * @returns NULL and errno if no inherit data.
+ */
+__LIBC_PSPMINHERIT  __libc_spmInheritRequest(void);
+
+/**
+ * Releases the inherit data locked by the __libc_spmInheritRequest() call.
+ *
+ * @returns 0 on success.
+ * @returns -1 and errno on failure.
+ */
+int  __libc_spmInheritRelease(void);
+
+/**
+ * Frees the inherit data of this process.
+ * This is called when the executable is initialized.
+ */
+void  __libc_spmInheritFree(void);
+
+/**
  * Create an embryo related to the current process.
  *