Changed name in spiffs from "errno" to "err_code" due to conflicts compiling in mingw.

Added #defines toe spiffs.h in C++ code.

src/spiffs.h

@@ -9,6 +9,9 @@
 
 #ifndef SPIFFS_H_
 #define SPIFFS_H_
+#if defined(__cplusplus)
+extern "C" {
+#endif
 
 #include "spiffs_config.h"
 
@@ -181,7 +184,7 @@ typedef struct {
   u32_t fd_count;
 
   // last error
-  s32_t errno;
+  s32_t err_code;
 
   // current number of free blocks
   u32_t free_blocks;
@@ -375,9 +378,9 @@ void SPIFFS_close(spiffs *fs, spiffs_file fh);
  * Renames a file
  * @param fs            the file system struct
  * @param old           path of file to rename
- * @param new           new path of file
+ * @param newPath       new path of file
  */
-s32_t SPIFFS_rename(spiffs *fs, char *old, char *new);
+s32_t SPIFFS_rename(spiffs *fs, char *old, char *newPath);
 
 /**
  * Returns last error of last file operation.
@@ -442,5 +445,8 @@ u32_t SPIFFS_buffer_bytes_for_cache(spiffs *fs, u32_t num_pages);
 
 #if SPIFFS_CHACHE
 #endif
+#if defined(__cplusplus)
+}
+#endif
 
 #endif /* SPIFFS_H_ */

src/spiffs_hydrogen.c

@@ -103,7 +103,7 @@ void SPIFFS_unmount(spiffs *fs) {
 }
 
 s32_t SPIFFS_errno(spiffs *fs) {
-  return fs->errno;
+  return fs->err_code;
 }
 
 s32_t SPIFFS_creat(spiffs *fs, char *path, spiffs_mode mode) {
@@ -580,7 +580,7 @@ static s32_t spiffs_fflush_cache(spiffs *fs, spiffs_file fh) {
           spiffs_get_cache_page(fs, spiffs_get_cache(fs), fd->cache_page->ix),
           fd->cache_page->offset, fd->cache_page->size);
       if (res < SPIFFS_OK) {
-        fs->errno = res;
+        fs->err_code = res;
       }
       spiffs_cache_fd_release(fs, fd->cache_page);
     }
@@ -605,7 +605,7 @@ s32_t SPIFFS_fflush(spiffs *fs, spiffs_file fh) {
 
 void SPIFFS_close(spiffs *fs, spiffs_file fh) {
   if (!SPIFFS_CHECK_MOUNT(fs)) {
-    fs->errno = SPIFFS_ERR_NOT_MOUNTED;
+    fs->err_code = SPIFFS_ERR_NOT_MOUNTED;
     return;
   }
   SPIFFS_LOCK(fs);
@@ -661,7 +661,7 @@ s32_t SPIFFS_rename(spiffs *fs, char *old, char *new) {
 spiffs_DIR *SPIFFS_opendir(spiffs *fs, char *name, spiffs_DIR *d) {
   (void)name;
   if (!SPIFFS_CHECK_MOUNT(fs)) {
-    fs->errno = SPIFFS_ERR_NOT_MOUNTED;
+    fs->err_code = SPIFFS_ERR_NOT_MOUNTED;
     return 0;
   }
   d->fs = fs;
@@ -707,7 +707,7 @@ static s32_t spiffs_read_dir_v(
 
 struct spiffs_dirent *SPIFFS_readdir(spiffs_DIR *d, struct spiffs_dirent *e) {
   if (!SPIFFS_CHECK_MOUNT(d->fs)) {
-    d->fs->errno = SPIFFS_ERR_NOT_MOUNTED;
+    d->fs->err_code = SPIFFS_ERR_NOT_MOUNTED;
     return 0;
   }
   SPIFFS_LOCK(fs);
@@ -732,7 +732,7 @@ struct spiffs_dirent *SPIFFS_readdir(spiffs_DIR *d, struct spiffs_dirent *e) {
     d->entry = entry + 1;
     ret = e;
   } else {
-    d->fs->errno = res;
+    d->fs->err_code = res;
   }
   SPIFFS_UNLOCK(fs);
   return ret;
@@ -821,7 +821,7 @@ s32_t SPIFFS_vis(spiffs *fs) {
   } // per block
 
   spiffs_printf("era_cnt_max: %i\n", fs->max_erase_count);
-  spiffs_printf("last_errno:  %i\n", fs->errno);
+  spiffs_printf("last_errno:  %i\n", fs->err_code);
   spiffs_printf("blocks:      %i\n", fs->block_count);
   spiffs_printf("free_blocks: %i\n", fs->free_blocks);
   spiffs_printf("page_alloc:  %i\n", fs->stats_p_allocated);

src/spiffs_nucleus.h

@@ -247,19 +247,19 @@
 
 #define SPIFFS_API_CHECK_MOUNT(fs) \
   if (!SPIFFS_CHECK_MOUNT((fs))) { \
-    (fs)->errno = SPIFFS_ERR_NOT_MOUNTED; \
+    (fs)->err_code = SPIFFS_ERR_NOT_MOUNTED; \
     return -1; \
   }
 
 #define SPIFFS_API_CHECK_RES(fs, res) \
   if ((res) < SPIFFS_OK) { \
-    (fs)->errno = (res); \
+    (fs)->err_code = (res); \
     return -1; \
   }
 
 #define SPIFFS_API_CHECK_RES_UNLOCK(fs, res) \
   if ((res) < SPIFFS_OK) { \
-    (fs)->errno = (res); \
+    (fs)->err_code = (res); \
     SPIFFS_UNLOCK(fs); \
     return -1; \
   }

src/test/test_spiffs.c

@@ -370,7 +370,7 @@ void fs_set_validate_flashing(int i) {
 void real_assert(int c, const char *n, const char *file, int l) {
   if (c == 0) {
     printf("ASSERT: %s %s @ %i\n", (n ? n : ""), file, l);
-    printf("fs errno:%i\n", __fs.errno);
+    printf("fs errno:%i\n", __fs.err_code);
     exit(0);
   }
 }