horrible-harry/render-test.cpp

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#include "render.h"
#include "terminal.h"

/* Log level guideline:
 * - ZF_LOG_FATAL - happened something impossible and absolutely unexpected.
 *   Process can't continue and must be terminated.
 *   Example: division by zero, unexpected modifications from other thread.
 * - ZF_LOG_ERROR - happened something possible, but highly unexpected. The
 *   process is able to recover and continue execution.
 *   Example: out of memory (could also be FATAL if not handled properly).
 * - ZF_LOG_WARN - happened something that *usually* should not happen and
 *   significantly changes application behavior for some period of time.
 *   Example: configuration file not found, auth error.
 * - ZF_LOG_INFO - happened significant life cycle event or major state
 *   transition.
 *   Example: app started, user logged in.
 * - ZF_LOG_DEBUG - minimal set of events that could help to reconstruct the
 *   execution path. Usually disabled in release builds.
 * - ZF_LOG_VERBOSE - all other events. Usually disabled in release builds.
 *
 * *Ideally*, log file of debugged, well tested, production ready application
 * should be empty or very small. Choosing a right log level is as important as
 * providing short and self descriptive log message.
 */
/*
#define ZF_LOG_VERBOSE 1
#define ZF_LOG_DEBUG   2
#define ZF_LOG_INFO    3
#define ZF_LOG_WARN    4
#define ZF_LOG_ERROR   5
#define ZF_LOG_FATAL   6
*/

// LOGGING with file output
#include "zf_log.h"

FILE *g_log_file;

static void file_output_callback(const zf_log_message *msg, void *arg) {
  (void)arg;
  *msg->p = '\n';
  fwrite(msg->buf, msg->p - msg->buf + 1, 1, g_log_file);
  fflush(g_log_file);
}

static void file_output_close(void) { fclose(g_log_file); }

static void file_output_open(const char *const log_path) {
  g_log_file = fopen(log_path, "a");
  if (!g_log_file) {
    ZF_LOGW("Failed to open log file %s", log_path);
    return;
  }
  atexit(file_output_close);
  zf_log_set_output_v(ZF_LOG_PUT_STD, 0, file_output_callback);
}

struct console_details console;

int main(int argc, char *argv[]) {

  file_output_open("render.log");

  render(1, "^P2HELLO^P3 THERE^P2\n", 22);
  render(1, "^P2^Fbat.^P1\n^P1OK.\n", 21);


return 0;
}