Changeset 75879 in vbox for trunk

Timestamp:

Dec 2, 2018 6:39:16 PM (6 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

127083

Message:

Runtime: Introduce RTShMem* API for accessing shared memory objects with implementations for POSIX (via shm_*) and Windows (via CreateFileMapping)

Location:

trunk

Files:

• include/iprt/err.h (modified) (1 diff)
• include/iprt/mangling.h (modified) (1 diff)
• include/iprt/shmem.h (added)
• include/iprt/types.h (modified) (1 diff)
• src/VBox/Runtime/Makefile.kmk (modified) (6 diffs)
• src/VBox/Runtime/VBox/VBoxRTImp.def (modified) (1 diff)
• src/VBox/Runtime/include/internal/magics.h (modified) (1 diff)
• src/VBox/Runtime/r3/posix/shmem-posix.cpp (added)
• src/VBox/Runtime/r3/win/shmem-win.cpp (added)
• src/VBox/Runtime/testcase/Makefile.kmk (modified) (2 diffs)
• src/VBox/Runtime/testcase/tstRTShMem.cpp (added)

trunk/include/iprt/err.h

@@ -3395 +3395 @@
 /** @} */
 
+
+/** @name RTShMem status codes
+ * @{ */
+/** Maximum number of mappings reached. */
+#define VERR_SHMEM_MAXIMUM_MAPPINGS_REACHED                     (-26000)
+/** @} */
+
 /* SED-END */
 

trunk/include/iprt/mangling.h

@@ -1942 +1942 @@
 # define RTSha512t256ToString                           RT_MANGLER(RTSha512t256ToString)
 # define RTSha512t256Update                             RT_MANGLER(RTSha512t256Update)
+# define RTShMemClose                                   RT_MANGLER(RTShMemClose)
+# define RTShMemMapRegion                               RT_MANGLER(RTShMemMapRegion)
+# define RTShMemOpen                                    RT_MANGLER(RTShMemOpen)
+# define RTShMemQuerySize                               RT_MANGLER(RTShMemQuerySize)
+# define RTShMemRefCount                                RT_MANGLER(RTShMemRefCount)
+# define RTShMemSetSize                                 RT_MANGLER(RTShMemSetSize)
+# define RTShMemUnmapRegion                             RT_MANGLER(RTShMemUnmapRegion)
 # define RTSocketClose                                  RT_MANGLER(RTSocketClose)
 # define RTSocketFromNative                             RT_MANGLER(RTSocketFromNative)

trunk/include/iprt/types.h

@@ -2528 +2528 @@
 #define NIL_RTKRNLMODINFO                          ((RTKRNLMODINFO)~(uintptr_t)0);
 
+/** Shared memory object handle. */
+typedef struct RTSHMEMINT                   RT_FAR *RTSHMEM;
+/** Pointer to a shared memory object handle. */
+typedef RTSHMEM                             RT_FAR *PRTSHMEM;
+/** A NIL shared memory object handle. */
+#define NIL_RTSHMEM                                ((RTSHMEM)~(uintptr_t)0)
+
 /**
  * Handle type.

trunk/src/VBox/Runtime/Makefile.kmk

@@ -877 +877 @@
         r3/win/semmutex-win.cpp \
         r3/win/serialport-win.cpp \
+        r3/win/shmem-win.cpp \
         r3/win/symlink-win.cpp \
         r3/win/thread-win.cpp \
@@ -965 +966 @@
         r3/posix/semrw-posix.cpp \
         r3/posix/serialport-posix.cpp \
+        r3/posix/shmem-posix.cpp \
         r3/posix/symlink-posix.cpp \
         r3/posix/thread-posix.cpp \
@@ -1148 +1150 @@
         r3/posix/serialport-posix.cpp \
         r3/posix/symlink-posix.cpp \
+        r3/posix/shmem-posix.cpp \
         r3/posix/thread-posix.cpp \
         r3/posix/thread2-posix.cpp \
@@ -1229 +1232 @@
         r3/posix/serialport-posix.cpp \
         r3/posix/symlink-posix.cpp \
+        r3/posix/shmem-posix.cpp \
         r3/posix/thread-posix.cpp \
         r3/posix/thread2-posix.cpp \
@@ -1305 +1309 @@
         r3/posix/serialport-posix.cpp \
         r3/posix/symlink-posix.cpp \
+        r3/posix/shmem-posix.cpp \
         r3/posix/thread-posix.cpp \
         r3/posix/thread2-posix.cpp \
@@ -1374 +1379 @@
         r3/posix/serialport-posix.cpp \
         r3/posix/symlink-posix.cpp \
+        r3/posix/shmem-posix.cpp \
         r3/posix/thread-posix.cpp \
         r3/posix/thread2-posix.cpp \

trunk/src/VBox/Runtime/VBox/VBoxRTImp.def

@@ -1662 +1662 @@
     RTSha512ToString
     RTSha512Update
+    RTShMemClose
+    RTShMemMapRegion
+    RTShMemOpen
+    RTShMemQuerySize
+    RTShMemRefCount
+    RTShMemSetSize
+    RTShMemUnmapRegion
     RTSocketClose
     RTSocketFromNative

trunk/src/VBox/Runtime/include/internal/magics.h

@@ -191 +191 @@
 /** RTSERIALPORTINTERNAL::u32Magic value after RTSerialPortClose. */
 #define RTSERIALPORT_MAGIC_DEAD         UINT32_C(0x19050324)
+/** RTSHMEMINT::u32Magic value (Stephen William Hawking) */
+#define RTSHMEM_MAGIC                   UINT32_C(0x19420108)
+/** RTSHMEMINT::u32Magic value after RTShMemClose */
+#define RTSHMEM_MAGIC_DEAD              UINT32_C(0x20180314)
 /** The magic value for RTSOCKETINT::u32Magic. (Stanislaw Lem) */
 #define RTSOCKET_MAGIC                  UINT32_C(0x19210912)

trunk/src/VBox/Runtime/testcase/Makefile.kmk

@@ -151 +151 @@
         tstRTVfs \
         tstRTZip \
-        tstRTJson
+        tstRTJson \
+        tstRTShMem
 
 PROGRAMS.win += \
@@ -731 +732 @@
 tstRTJson_SOURCES = tstRTJson.cpp
 
+tstRTShMem_TEMPLATE = VBOXR3TSTEXE
+tstRTShMem_SOURCES = tstRTShMem.cpp
+
 #
 # Ring-0 testcases.