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[babeltrace.git] / src / compat / mman.c

diff --git a/src/compat/mman.c b/src/compat/mman.c
index de1d7b34a4d9bf5b07a39e0a7f28bb8fcd4922f3..e8eea8768c540dfc40ae353e5db43fcfa1c52728 100644 (file)
--- a/src/compat/mman.c
+++ b/src/compat/mman.c
@@ -1,29 +1,11 @@
 /*
- * compat/compat_mman.h
+ * SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2013   JP Ikaheimonen <jp_ikaheimonen@mentor.com>
- *               2016   Michael Jeanson <mjeanson@efficios.com>
+ * Copyright (C) 2013 JP Ikaheimonen <jp_ikaheimonen@mentor.com>
+ * Copyright (C) 2016 Michael Jeanson <mjeanson@efficios.com>
  *
  * These sources are based on ftp://g.oswego.edu/pub/misc/malloc.c
  * file by Doug Lea, released to the public domain.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
  */
 
 #define BT_LOG_OUTPUT_LEVEL (mapping->log_level)
@@ -31,13 +13,13 @@
 #include "logging/log.h"
 
 #include "common/macros.h"
+#include "common/common.h"
 
 #ifdef __APPLE__
 /*
  * On macOS, we need a dummy symbol so that the linker won't
  * complain of an empty table of contents.
  */
-BT_HIDDEN
 int bt_mman_dummy_symbol;
 #endif /* __APPLE__ */
 
@@ -70,14 +52,15 @@ GHashTable *mmap_mappings = NULL;
 static pthread_mutex_t mmap_mutex = PTHREAD_MUTEX_INITIALIZER;
 
 static
-struct mmap_mapping *mapping_create(void)
+struct mmap_mapping *mapping_create(int log_level)
 {
        struct mmap_mapping *mapping;
 
        mapping = malloc(sizeof(struct mmap_mapping));
-       if (mapping != NULL) {
+       if (mapping) {
                mapping->file_handle = NULL;
                mapping->map_handle = NULL;
+               mapping->log_level = log_level;
        }
 
        return mapping;
@@ -89,11 +72,11 @@ void mapping_clean(struct mmap_mapping *mapping)
        if (mapping) {
                if (!CloseHandle(mapping->map_handle)) {
                        BT_LOGF_STR("Failed to close mmap map_handle.");
-                       abort();
+                       bt_common_abort();
                }
                if (!CloseHandle(mapping->file_handle)) {
                        BT_LOGF_STR("Failed to close mmap file_handle.");
-                       abort();
+                       bt_common_abort();
                }
                free(mapping);
                mapping = NULL;
@@ -111,7 +94,7 @@ void addr_clean(void *addr)
                 */
                BT_LOG_WRITE_CUR_LVL(BT_LOG_FATAL, BT_LOG_FATAL, BT_LOG_TAG,
                        "Failed to unmap mmap mapping.");
-               abort();
+               bt_common_abort();
        }
 }
 
@@ -119,8 +102,8 @@ static
 void mmap_lock(int log_level)
 {
        if (pthread_mutex_lock(&mmap_mutex)) {
-               BT_LOGF_STR("Failed to acquire mmap_mutex.");
-               abort();
+               BT_LOG_WRITE_CUR_LVL(BT_LOG_FATAL, log_level, BT_LOG_TAG, "Failed to acquire mmap_mutex.");
+               bt_common_abort();
        }
 }
 
@@ -128,8 +111,8 @@ static
 void mmap_unlock(int log_level)
 {
        if (pthread_mutex_unlock(&mmap_mutex)) {
-               BT_LOGF_STR("Failed to release mmap_mutex.");
-               abort();
+               BT_LOG_WRITE_CUR_LVL(BT_LOG_FATAL, log_level, BT_LOG_TAG, "Failed to release mmap_mutex.");
+               bt_common_abort();
        }
 }
 
@@ -169,7 +152,6 @@ DWORD map_prot_flags(int prot, DWORD *dwDesiredAccess)
        return 0;
 }
 
-BT_HIDDEN
 void *bt_mmap(void *addr, size_t length, int prot, int flags, int fd,
                off_t offset, int log_level)
 {
@@ -270,7 +252,6 @@ error:
        return MAP_FAILED;
 }
 
-BT_HIDDEN
 int bt_munmap(void *addr, size_t length)
 {
        int ret = 0;
@@ -282,7 +263,7 @@ int bt_munmap(void *addr, size_t length)
        mmap_lock(log_level);
 
        /* Check if the mapping exists in the hashtable. */
-       if (g_hash_table_lookup(mmap_mappings, addr) == NULL) {
+       if (!g_hash_table_lookup(mmap_mappings, addr)) {
                _set_errno(EINVAL);
                ret = -1;
                goto end;
@@ -291,7 +272,7 @@ int bt_munmap(void *addr, size_t length)
        /* Remove it. */
        if (!g_hash_table_remove(mmap_mappings, addr)) {
                BT_LOGF_STR("Failed to remove mapping from hashtable.");
-               abort();
+               bt_common_abort();
        }
 
 end:
@@ -299,4 +280,16 @@ end:
        return ret;
 }
 
+size_t bt_mmap_get_offset_align_size(int log_level)
+{
+       SYSTEM_INFO sysinfo;
+
+       GetNativeSystemInfo(&sysinfo);
+       BT_LOG_WRITE_CUR_LVL(BT_LOG_DEBUG, log_level, BT_LOG_TAG,
+               "Allocator granularity is %lu.",
+               sysinfo.dwAllocationGranularity);
+
+       return sysinfo.dwAllocationGranularity;
+}
+
 #endif