diff options
Diffstat (limited to 'src/helper')
-rw-r--r-- | src/helper/fileio.c | 58 | ||||
-rw-r--r-- | src/helper/fileio.h | 11 |
2 files changed, 47 insertions, 22 deletions
diff --git a/src/helper/fileio.c b/src/helper/fileio.c index ba62397c..7c862e47 100644 --- a/src/helper/fileio.c +++ b/src/helper/fileio.c @@ -31,7 +31,16 @@ #include "configuration.h" #include "fileio.h" -static inline int fileio_open_local(struct fileio *fileio) +struct fileio_internal { + const char *url; + ssize_t size; + enum fileio_type type; + enum fileio_access access; + FILE *file; +}; + +static inline int fileio_close_local(struct fileio_internal *fileio); +static inline int fileio_open_local(struct fileio_internal *fileio) { char file_access[4]; @@ -86,7 +95,7 @@ static inline int fileio_open_local(struct fileio *fileio) if ((fileio->size < 0)||(result < 0)||(result2 < 0)) { - fileio_close(fileio); + fileio_close_local(fileio); return ERROR_FILEIO_OPERATION_FAILED; } } @@ -98,10 +107,13 @@ static inline int fileio_open_local(struct fileio *fileio) return ERROR_OK; } -int fileio_open(struct fileio *fileio, const char *url, enum fileio_access access_type, enum fileio_type type) +int fileio_open(struct fileio *fileio_p, const char *url, enum fileio_access access_type, enum fileio_type type) { int retval = ERROR_OK; + struct fileio_internal *fileio = malloc(sizeof(struct fileio_internal)); + fileio_p->fp = fileio; + fileio->type = type; fileio->access = access_type; fileio->url = strdup(url); @@ -111,7 +123,7 @@ int fileio_open(struct fileio *fileio, const char *url, enum fileio_access acces return retval; } -static inline int fileio_close_local(struct fileio *fileio) +static inline int fileio_close_local(struct fileio_internal *fileio) { int retval; if ((retval = fclose(fileio->file)) != 0) @@ -131,21 +143,26 @@ static inline int fileio_close_local(struct fileio *fileio) return ERROR_OK; } -int fileio_close(struct fileio *fileio) +int fileio_close(struct fileio *fileio_p) { int retval; + struct fileio_internal *fileio = fileio_p->fp; retval = fileio_close_local(fileio); free((void*)fileio->url); fileio->url = NULL; + free(fileio); + fileio_p->fp = NULL; + return retval; } -int fileio_seek(struct fileio *fileio, size_t position) +int fileio_seek(struct fileio *fileio_p, size_t position) { int retval; + struct fileio_internal *fileio = fileio_p->fp; if ((retval = fseek(fileio->file, position, SEEK_SET)) != 0) { LOG_ERROR("couldn't seek file %s: %s", fileio->url, strerror(errno)); @@ -155,7 +172,7 @@ int fileio_seek(struct fileio *fileio, size_t position) return ERROR_OK; } -static int fileio_local_read(struct fileio *fileio, +static int fileio_local_read(struct fileio_internal *fileio, size_t size, void *buffer, size_t *size_read) { ssize_t retval = fread(buffer, 1, size, fileio->file); @@ -163,16 +180,18 @@ static int fileio_local_read(struct fileio *fileio, return (retval < 0) ? retval : ERROR_OK; } -int fileio_read(struct fileio *fileio, size_t size, void *buffer, +int fileio_read(struct fileio *fileio_p, size_t size, void *buffer, size_t *size_read) { + struct fileio_internal *fileio = fileio_p->fp; return fileio_local_read(fileio, size, buffer, size_read); } -int fileio_read_u32(struct fileio *fileio, uint32_t *data) +int fileio_read_u32(struct fileio *fileio_p, uint32_t *data) { uint8_t buf[4]; size_t size_read; + struct fileio_internal *fileio = fileio_p->fp; int retval = fileio_local_read(fileio, sizeof(uint32_t), buf, &size_read); if (ERROR_OK == retval && sizeof(uint32_t) != size_read) retval = -EIO; @@ -181,7 +200,7 @@ int fileio_read_u32(struct fileio *fileio, uint32_t *data) return retval; } -static int fileio_local_fgets(struct fileio *fileio, +static int fileio_local_fgets(struct fileio_internal *fileio, size_t size, void *buffer) { if (fgets(buffer, size, fileio->file) == NULL) @@ -190,12 +209,13 @@ static int fileio_local_fgets(struct fileio *fileio, return ERROR_OK; } -int fileio_fgets(struct fileio *fileio, size_t size, void *buffer) +int fileio_fgets(struct fileio *fileio_p, size_t size, void *buffer) { + struct fileio_internal *fileio = fileio_p->fp; return fileio_local_fgets(fileio, size, buffer); } -static int fileio_local_write(struct fileio *fileio, +static int fileio_local_write(struct fileio_internal *fileio, size_t size, const void *buffer, size_t *size_written) { ssize_t retval = fwrite(buffer, 1, size, fileio->file); @@ -203,24 +223,30 @@ static int fileio_local_write(struct fileio *fileio, return (retval < 0) ? retval : ERROR_OK; } -int fileio_write(struct fileio *fileio, +int fileio_write(struct fileio *fileio_p, size_t size, const void *buffer, size_t *size_written) { + struct fileio_internal *fileio = fileio_p->fp; int retval = fileio_local_write(fileio, size, buffer, size_written); if (retval == ERROR_OK) fileio->size += *size_written; return retval; } -int fileio_write_u32(struct fileio *fileio, uint32_t data) +int fileio_write_u32(struct fileio *fileio_p, uint32_t data) { uint8_t buf[4]; h_u32_to_be(buf, data); - size_t size_written; - int retval = fileio_write(fileio, 4, buf, &size_written); + int retval = fileio_write(fileio_p, 4, buf, &size_written); if (ERROR_OK == retval && size_written != sizeof(uint32_t)) retval = -EIO; return retval; } + +int fileio_size(struct fileio *fileio_p) +{ + struct fileio_internal *fileio = fileio_p->fp; + return fileio->size; +} diff --git a/src/helper/fileio.h b/src/helper/fileio.h index 597bafc0..40c4ef0e 100644 --- a/src/helper/fileio.h +++ b/src/helper/fileio.h @@ -46,12 +46,10 @@ enum fileio_access FILEIO_APPENDREAD, /* open for writing, position at end, allow reading */ }; -struct fileio { - const char *url; - ssize_t size; - enum fileio_type type; - enum fileio_access access; - FILE *file; +struct fileio +{ + /* The structure is opaque */ + struct fileio_internal *fp; }; int fileio_open(struct fileio *fileio, @@ -68,6 +66,7 @@ int fileio_write(struct fileio *fileio, int fileio_read_u32(struct fileio *fileio, uint32_t *data); int fileio_write_u32(struct fileio *fileio, uint32_t data); +int fileio_size(struct fileio *fileio); #define ERROR_FILEIO_LOCATION_UNKNOWN (-1200) #define ERROR_FILEIO_NOT_FOUND (-1201) |