1 files changed, 117 insertions, 0 deletions
diff --git a/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/core/shared/utils/uncommon/bh_read_file.c b/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/core/shared/utils/uncommon/bh_read_file.c
new file mode 100644
index 000000000..5ddf1b601
--- /dev/null
+++ b/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/core/shared/utils/uncommon/bh_read_file.c
@@ -0,0 +1,117 @@
+#include "bh_read_file.h"
+
+#include <sys/stat.h>
+#include <fcntl.h>
+#if defined(_WIN32) || defined(_WIN32_)
+#include <io.h>
+#else
+#include <unistd.h>
+#endif
+
+#if defined(_WIN32) || defined(_WIN32_)
+
+#if defined(__MINGW32__) && !defined(_SH_DENYNO)
+#define _SH_DENYNO 0x40
+#endif
+
+char *
+bh_read_file_to_buffer(const char *filename, uint32 *ret_size)
+{
+    char *buffer;
+    int file;
+    uint32 file_size, buf_size, read_size;
+    struct stat stat_buf;
+
+    if (!filename || !ret_size) {
+        printf("Read file to buffer failed: invalid filename or ret size.\n");
+        return NULL;
+    }
+
+    if (_sopen_s(&file, filename, _O_RDONLY | _O_BINARY, _SH_DENYNO, 0)) {
+        printf("Read file to buffer failed: open file %s failed.\n", filename);
+        return NULL;
+    }
+
+    if (fstat(file, &stat_buf) != 0) {
+        printf("Read file to buffer failed: fstat file %s failed.\n", filename);
+        _close(file);
+        return NULL;
+    }
+    file_size = (uint32)stat_buf.st_size;
+
+    /* At lease alloc 1 byte to avoid malloc failed */
+    buf_size = file_size > 0 ? file_size : 1;
+
+    if (!(buffer = (char *)BH_MALLOC(buf_size))) {
+        printf("Read file to buffer failed: alloc memory failed.\n");
+        _close(file);
+        return NULL;
+    }
+#if WASM_ENABLE_MEMORY_TRACING != 0
+    printf("Read file, total size: %u\n", file_size);
+#endif
+
+    read_size = _read(file, buffer, file_size);
+    _close(file);
+
+    if (read_size < file_size) {
+        printf("Read file to buffer failed: read file content failed.\n");
+        BH_FREE(buffer);
+        return NULL;
+    }
+
+    *ret_size = file_size;
+    return buffer;
+}
+#else /* else of defined(_WIN32) || defined(_WIN32_) */
+char *
+bh_read_file_to_buffer(const char *filename, uint32 *ret_size)
+{
+    char *buffer;
+    int file;
+    uint32 file_size, buf_size, read_size;
+    struct stat stat_buf;
+
+    if (!filename || !ret_size) {
+        printf("Read file to buffer failed: invalid filename or ret size.\n");
+        return NULL;
+    }
+
+    if ((file = open(filename, O_RDONLY, 0)) == -1) {
+        printf("Read file to buffer failed: open file %s failed.\n", filename);
+        return NULL;
+    }
+
+    if (fstat(file, &stat_buf) != 0) {
+        printf("Read file to buffer failed: fstat file %s failed.\n", filename);
+        close(file);
+        return NULL;
+    }
+
+    file_size = (uint32)stat_buf.st_size;
+
+    /* At lease alloc 1 byte to avoid malloc failed */
+    buf_size = file_size > 0 ? file_size : 1;
+
+    if (!(buffer = BH_MALLOC(buf_size))) {
+        printf("Read file to buffer failed: alloc memory failed.\n");
+        close(file);
+        return NULL;
+    }
+#if WASM_ENABLE_MEMORY_TRACING != 0
+    printf("Read file, total size: %u\n", file_size);
+#endif
+
+    read_size = (uint32)read(file, buffer, file_size);
+    close(file);
+
+    if (read_size < file_size) {
+        printf("Read file to buffer failed: read file content failed.\n");
+        BH_FREE(buffer);
+        return NULL;
+    }
+
+    *ret_size = file_size;
+    return buffer;
+}
+#endif /* end of defined(_WIN32) || defined(_WIN32_) */