Re-org platform APIs: move most platform APIs of iwasm to shared-lib (#45)

core/shared-lib/platform/linux/bh_platform.c

@@ -15,8 +15,10 @@
  */
 
 #include "bh_platform.h"
-#include <stdlib.h>
-#include <string.h>
+
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
 
 char *bh_strdup(const char *s)
 {
@@ -25,3 +27,56 @@ char *bh_strdup(const char *s)
         memcpy(s1, s, strlen(s) + 1);
     return s1;
 }
+
+int bh_platform_init()
+{
+    return 0;
+}
+
+char*
+bh_read_file_to_buffer(const char *filename, int *ret_size)
+{
+    char *buffer;
+    int file;
+    int file_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 = stat_buf.st_size;
+
+    if (!(buffer = bh_malloc(file_size))) {
+        printf("Read file to buffer failed: alloc memory failed.\n");
+        close(file);
+        return NULL;
+    }
+
+    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;
+}
+

core/shared-lib/platform/linux/bh_platform.h

@@ -26,11 +26,16 @@
 #include <time.h>
 #include <string.h>
 #include <stdio.h>
-#include <assert.h>
-
-#ifndef __cplusplus
-int snprintf(char *buffer, size_t count, const char *format, ...);
-#endif
+#include <stdlib.h>
+#include <math.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <pthread.h>
+#include <limits.h>
+#include <semaphore.h>
+#include <errno.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -47,46 +52,19 @@ extern void DEBUGME(void);
 
 /* NEED qsort */
 
-#include <stdarg.h>
-#include <ctype.h>
-#include <pthread.h>
-#include <limits.h>
-#include <semaphore.h>
-#include <errno.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-
 #define _STACK_SIZE_ADJUSTMENT (32 * 1024)
 
-/* Stack size of applet manager thread.  */
-#define BH_APPLET_MANAGER_THREAD_STACK_SIZE (8 * 1024 + _STACK_SIZE_ADJUSTMENT)
-
-/* Stack size of HMC thread.  */
-#define BH_HMC_THREAD_STACK_SIZE            (4 * 1024 + _STACK_SIZE_ADJUSTMENT)
-
-/* Stack size of watchdog thread.  */
-#define BH_WATCHDOG_THREAD_SIZE             (4 * 1024 + _STACK_SIZE_ADJUSTMENT)
-
 /* Stack size of applet threads's native part.  */
 #define BH_APPLET_PRESERVED_STACK_SIZE      (8 * 1024 + _STACK_SIZE_ADJUSTMENT)
 
-/* Stack size of remote invoke listen thread.  */
-#define BH_REMOTE_INVOKE_THREAD_STACK_SIZE  (4 * 1024 + _STACK_SIZE_ADJUSTMENT)
-
-/* Stack size of remote post listen thread.  */
-#define BH_REMOTE_POST_THREAD_STACK_SIZE    (4 * 1024 + _STACK_SIZE_ADJUSTMENT)
-
-/* Maximal recursion depth of interpreter.  */
-#define BH_MAX_INTERP_RECURSION_DEPTH       8
-
 /* Default thread priority */
 #define BH_THREAD_DEFAULT_PRIORITY 0
 
 #define BH_ROUTINE_MODIFIER
+
 #define BHT_TIMEDOUT ETIMEDOUT
 
 #define INVALID_THREAD_ID 0xFFffFFff
-#define INVALID_SEM_ID SEM_FAILED
 
 typedef pthread_t korp_tid;
 typedef pthread_mutex_t korp_mutex;
@@ -99,28 +77,43 @@ typedef void* (*thread_start_routine_t)(void*);
 #define wa_free bh_free
 #define wa_strdup bh_strdup
 
+int snprintf(char *buffer, size_t count, const char *format, ...);
 double fmod(double x, double y);
 float fmodf(float x, float y);
+double sqrt(double x);
 
-/* Definitions for applet debugging */
-#define APPLET_DEBUG_LISTEN_PORT 8000
-#define BH_SOCKET_INVALID_SOCK -1
 #define BH_WAIT_FOREVER 0xFFFFFFFF
-typedef int bh_socket_t;
 
 #ifndef NULL
 #  define NULL ((void*) 0)
 #endif
 
+/**
+ * Return the offset of the given field in the given type.
+ *
+ * @param Type the type containing the filed
+ * @param field the field in the type
+ *
+ * @return the offset of field in Type
+ */
+#ifndef offsetof
+#define offsetof(Type, field) ((size_t)(&((Type *)0)->field))
+#endif
+
 #define bh_assert assert
 
-extern int b_memcpy_s(void * s1, unsigned int s1max, const void * s2,
-        unsigned int n);
-extern int b_strcat_s(char * s1, size_t s1max, const char * s2);
-extern int b_strcpy_s(char * s1, size_t s1max, const char * s2);
-extern int fopen_s(FILE ** pFile, const char *filename, const char *mode);
+int b_memcpy_s(void * s1, unsigned int s1max, const void * s2,
+               unsigned int n);
+int b_strcat_s(char * s1, size_t s1max, const char * s2);
+int b_strcpy_s(char * s1, size_t s1max, const char * s2);
 
-extern char *bh_strdup(const char *s);
+int fopen_s(FILE ** pFile, const char *filename, const char *mode);
+
+char *bh_read_file_to_buffer(const char *filename, int *ret_size);
+
+char *bh_strdup(const char *s);
+
+int bh_platform_init();
 
 #ifdef __cplusplus
 }