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feat: finished io_backend

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This commit is contained in:
Gu://em_ 2026-01-08 16:15:29 +01:00
parent 3bcd741d56
commit 464dbe8e17
2 changed files with 98 additions and 14 deletions
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24
src/io_backend/io_backend.h
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@ -3,6 +3,13 @@
#include <sys/types.h>
// Error codes
#define IOB_ERROR_GENERIC -1
#define IOB_ERROR_BAD_ARG -2
#define IOB_ERROR_MODULE_NOT_INITIALIZED -3
#define IOB_ERROR_MODULE_ALREADY_INITALIZED -4
#define IOB_ERROR_CANNOT_OPEN_FILE -5
enum iob_mode {
IOB_MODE_NULL = 0,
IOB_MODE_STDIN,
@ -10,11 +17,18 @@ enum iob_mode {
IOB_MODE_CMD
};
enum iob_state {
IOB_STATE_NOT_INITIALIZED,
IOB_STATE_READY,
IOB_STATE_FINISHED,
IOB_STATE_ERROR
};
/* @struct iob_context
* @var mode
* @var args contains
* the script name when mode is set to IOB_SCRIPT,
* the command to execute when mode is set to IOB_CMD,
* the script name when mode is set to IOB_MODE_SCRIPT,
* the command to execute when mode is set to IOB_MODE_CMD
*/
struct iob_context {
enum iob_mode mode;
@ -29,14 +43,16 @@ struct iob_context {
*/
int iob_init(struct iob_context *context);
/* @brief Closes the opened buffers and exits the modules gracefully
/* @brief Closes the opened buffers and the module gracefully
*/
void iob_close(void);
/* @brief reads at most one line of the input and stores it into *stream
*
* @param stream is a pointer that will be set to a string to parse
* @return the number of read characters if positive, the error code otherwise
* @return the number of read characters if positive,
* zero if finished (reached EOF),
* the error code otherwise
*/
ssize_t stream_read(char** stream);