CLeanups/fixes

frontend/drivers/platform_linux.c

@@ -39,6 +39,7 @@
 #include <boolean.h>
 #include <retro_dirent.h>
 #include <retro_inline.h>
+#include <retro_file.h>
 #include <retro_log.h>
 #include <compat/strl.h>
 #include <rhash.h>
@@ -49,25 +50,6 @@
 #include "../../general.h"
 #include "platform_linux.h"
 
-static bool load_generic_file(ssize_t *len, const char *path, char *buf, size_t buflen)
-{
-   const int fd = open(path, O_RDONLY);
-   if (fd < 0)
-      return false;
-
-   do
-   {
-      *len = read(fd, buf, buflen);
-   }while(*len < 0 && errno == EINTR);
-
-   close(fd);
-   if (*len < 0)
-      return false;
-   buf[*len] = '\0';             /* null-terminate the string. */
-
-   return true;
-}
-
 static bool                cpu_inited_once;
 static  cpu_family         g_cpuFamily;
 static  uint64_t           g_cpuFeatures;
@@ -299,7 +281,7 @@ static void cpulist_read_from(CpuList* list, const char* filename)
 
    list->mask = 0;
 
-   if (!load_generic_file(&filelen, filename, file, sizeof(file)))
+   if (!retro_fmemcpy(filename, file, sizeof(file), &filelen))
    {
       RARCH_ERR("Could not read %s: %s\n", filename, strerror(errno));
       return;
@@ -339,9 +321,7 @@ static void linux_cpu_init(void)
    g_cpuFeatures = 0;
    g_cpuCount    = 1;
 
-   load_generic_file(&cpuinfo_len, "/proc/cpuinfo", cpuinfo, sizeof cpuinfo);
-
-   if (cpuinfo_len < 0)
+   if (!retro_fmemcpy("/proc/cpuinfo", cpuinfo, sizeof(cpuinfo), &cpuinfo_len))
       return;
 
    /* Count the CPU cores, the value may be 0 for single-core CPUs */
@@ -1005,11 +985,11 @@ static void check_proc_acpi_battery(const char * node, bool * have_battery,
 
    snprintf(path, sizeof(path), "%s/%s/%s", base, node, "state");
 
-   if (!load_generic_file(&buflen, path, state, sizeof (state)))
+   if (!retro_fmemcpy(path, state, sizeof(state), &buflen))
       return;
 
    snprintf(path, sizeof(path), "%s/%s/%s", base, node, "info");
-   if (!load_generic_file(&buflen, path, info, sizeof (info)))
+   if (!retro_fmemcpy(path, info, sizeof(info), &buflen))
       return;
 
    ptr = &state[0];
@@ -1120,7 +1100,7 @@ static void check_proc_acpi_sysfs_battery(const char * node, bool * have_battery
       return;
 
    snprintf(path, sizeof(path), "%s/%s/%s", base, node, "status");
-   if (!load_generic_file(&buflen, path, state, sizeof (state)))
+   if (!retro_fmemcpy(path, state, sizeof (state), &buflen))
       return;
 
    if (strstr(state, "Discharging"))
@@ -1129,7 +1109,7 @@ static void check_proc_acpi_sysfs_battery(const char * node, bool * have_battery
       *have_battery = true;
 
    snprintf(path, sizeof(path), "%s/%s/%s", base, node, "capacity");
-   if (!load_generic_file(&buflen, path, state, sizeof (state)))
+   if (!retro_fmemcpy(path, state, sizeof (state), &buflen))
       return;
 
    capacity = atoi(state);
@@ -1148,7 +1128,7 @@ static void check_proc_acpi_ac_adapter(const char * node, bool *have_ac)
    ssize_t buflen   = 0;
 
    snprintf(path, sizeof(path), "%s/%s/%s", base, node, "state");
-   if (!load_generic_file(&buflen, path, state, sizeof (state)))
+   if (!retro_fmemcpy(path, state, sizeof(state), &buflen))
       return;
 
    ptr = &state[0];
@@ -1170,7 +1150,7 @@ static void check_proc_acpi_sysfs_ac_adapter(const char * node, bool *have_ac)
    const char *base = proc_acpi_sysfs_ac_adapter_path;
 
    snprintf(path, sizeof(path), "%s/%s/%s", base, node, "online");
-   if (!load_generic_file(&buflen, path, state, sizeof (state)))
+   if (!retro_fmemcpy(path, state, sizeof(state), &buflen))
       return;
 
    if (strstr(state, "1"))
@@ -1220,7 +1200,7 @@ static bool frontend_linux_powerstate_check_apm(
    ssize_t buflen      = 0;
    char *str           = NULL;
    
-   if (!load_generic_file(&buflen, proc_apm_path, buf, sizeof(buf)))
+   if (!retro_fmemcpy(proc_apm_path, buf, sizeof(buf), &buflen))
       return false;
 
    ptr                 = &buf[0];

libretro-common/file/retro_file.c

@@ -3,6 +3,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <errno.h>
 
 #if defined(_WIN32)
 #  include <compat/posix_string.h>
@@ -37,10 +38,10 @@
 #include <fcntl.h>
 #endif
 
-typedef struct RFILE
+struct RFILE
 {
    int fd;
-} RFILE;
+};
 
 RFILE *retro_fopen(const char *path, unsigned mode, ssize_t len)
 {
@@ -99,3 +100,24 @@ void retro_fclose(RFILE *stream)
    close(stream->fd);
    free(stream);
 }
+
+bool retro_fmemcpy(const char *path, char *s, size_t len, ssize_t *bytes_written)
+{
+   RFILE *stream = retro_fopen(path, RFILE_MODE_READ, -1);
+   if (!stream)
+      return false;
+
+   do
+   {
+      *bytes_written = retro_fread(stream, s, len);
+   }while(*bytes_written < 0 && errno == EINTR);
+
+   retro_fclose(stream);
+   if (*bytes_written < 0)
+      return false;
+
+   /* NULL-terminate the string. */
+   s[*bytes_written] = '\0';
+
+   return true;
+}

libretro-common/include/retro_file.h

@@ -28,6 +28,8 @@
 
 #include <sys/types.h>
 
+#include <boolean.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -51,6 +53,8 @@ ssize_t retro_fwrite(RFILE *stream, const void *s, size_t len);
 
 void retro_fclose(RFILE *stream);
 
+bool retro_fmemcpy(const char *path, char *s, size_t len, ssize_t *bytes_written);
+
 #ifdef __cplusplus
 }
 #endif

libretro-db/bintree.c

@@ -14,12 +14,12 @@ struct bintree_node
    struct bintree_node *right;
 };
 
-typedef struct bintree
+struct bintree
 {
    struct bintree_node *root;
    bintree_cmp_func cmp;
    void *ctx;
-} bintree_t;
+};
 
 static void *NIL_NODE = &NIL_NODE;
 

libretro-db/libretrodb.c

@@ -31,21 +31,21 @@ struct node_iter_ctx
 	libretrodb_index_t *idx;
 };
 
-typedef struct libretrodb
+struct libretrodb
 {
 	RFILE *fd;
 	uint64_t root;
 	uint64_t count;
 	uint64_t first_index_offset;
    char path[1024];
-} libretrodb_t;
+};
 
-typedef struct libretrodb_index
+struct libretrodb_index
 {
 	char name[50];
 	uint64_t key_size;
 	uint64_t next;
-} libretrodb_index_t;
+};
 
 typedef struct libretrodb_metadata
 {
@@ -58,14 +58,14 @@ typedef struct libretrodb_header
 	uint64_t metadata_offset;
 } libretrodb_header_t;
 
-typedef struct libretrodb_cursor
+struct libretrodb_cursor
 {
 	int is_valid;
    RFILE *fd;
 	int eof;
 	libretrodb_query_t *query;
 	libretrodb_t *db;
-} libretrodb_cursor_t;
+};
 
 static struct rmsgpack_dom_value sentinal;