diff options
Diffstat (limited to 'filter/error.c')
| -rw-r--r-- | filter/error.c | 266 |
1 files changed, 0 insertions, 266 deletions
diff --git a/filter/error.c b/filter/error.c deleted file mode 100644 index 0916a15fe..000000000 --- a/filter/error.c +++ /dev/null @@ -1,266 +0,0 @@ -/* - * Raster error handling for CUPS. - * - * Copyright 2007-2015 by Apple Inc. - * Copyright 2007 by Easy Software Products. - * - * Licensed under Apache License v2.0. See the file "LICENSE" for more information. - */ - -/* - * Include necessary headers... - */ - -#include <cups/raster-private.h> - - -/* - * Local structures... - */ - -typedef struct _cups_raster_error_s /**** Error buffer structure ****/ -{ - char *start, /* Start of buffer */ - *current, /* Current position in buffer */ - *end; /* End of buffer */ -} _cups_raster_error_t; - - -/* - * Local functions... - */ - -static _cups_raster_error_t *get_error_buffer(void); - - -/* - * '_cupsRasterAddError()' - Add an error message to the error buffer. - */ - -void -_cupsRasterAddError(const char *f, /* I - Printf-style error message */ - ...) /* I - Additional arguments as needed */ -{ - _cups_raster_error_t *buf = get_error_buffer(); - /* Error buffer */ - va_list ap; /* Pointer to additional arguments */ - char s[2048]; /* Message string */ - ssize_t bytes; /* Bytes in message string */ - - - DEBUG_printf(("_cupsRasterAddError(f=\"%s\", ...)", f)); - - va_start(ap, f); - bytes = vsnprintf(s, sizeof(s), f, ap); - va_end(ap); - - if (bytes <= 0) - return; - - DEBUG_printf(("1_cupsRasterAddError: %s", s)); - - bytes ++; - - if ((size_t)bytes >= sizeof(s)) - return; - - if (bytes > (ssize_t)(buf->end - buf->current)) - { - /* - * Allocate more memory... - */ - - char *temp; /* New buffer */ - size_t size; /* Size of buffer */ - - - size = (size_t)(buf->end - buf->start + 2 * bytes + 1024); - - if (buf->start) - temp = realloc(buf->start, size); - else - temp = malloc(size); - - if (!temp) - return; - - /* - * Update pointers... - */ - - buf->end = temp + size; - buf->current = temp + (buf->current - buf->start); - buf->start = temp; - } - - /* - * Append the message to the end of the current string... - */ - - memcpy(buf->current, s, (size_t)bytes); - buf->current += bytes - 1; -} - - -/* - * '_cupsRasterClearError()' - Clear the error buffer. - */ - -void -_cupsRasterClearError(void) -{ - _cups_raster_error_t *buf = get_error_buffer(); - /* Error buffer */ - - - buf->current = buf->start; - - if (buf->start) - *(buf->start) = '\0'; -} - - -/* - * 'cupsRasterErrorString()' - Return the last error from a raster function. - * - * If there are no recent errors, NULL is returned. - * - * @since CUPS 1.3/macOS 10.5@ - */ - -const char * /* O - Last error */ -cupsRasterErrorString(void) -{ - _cups_raster_error_t *buf = get_error_buffer(); - /* Error buffer */ - - - if (buf->current == buf->start) - return (NULL); - else - return (buf->start); -} - - -#ifdef HAVE_PTHREAD_H -/* - * Implement per-thread globals... - */ - -# include <pthread.h> - - -/* - * Local globals... - */ - -static pthread_key_t raster_key = 0; /* Thread local storage key */ -static pthread_once_t raster_key_once = PTHREAD_ONCE_INIT; - /* One-time initialization object */ - - -/* - * Local functions... - */ - -static void raster_init(void); -static void raster_destructor(void *value); - - -/* - * 'get_error_buffer()' - Return a pointer to thread local storage. - */ - -_cups_raster_error_t * /* O - Pointer to error buffer */ -get_error_buffer(void) -{ - _cups_raster_error_t *buf; /* Pointer to error buffer */ - - - /* - * Initialize the global data exactly once... - */ - - DEBUG_puts("3get_error_buffer()"); - - pthread_once(&raster_key_once, raster_init); - - /* - * See if we have allocated the data yet... - */ - - if ((buf = (_cups_raster_error_t *)pthread_getspecific(raster_key)) - == NULL) - { - DEBUG_puts("4get_error_buffer: allocating memory for thread."); - - /* - * No, allocate memory as set the pointer for the key... - */ - - buf = calloc(1, sizeof(_cups_raster_error_t)); - pthread_setspecific(raster_key, buf); - - DEBUG_printf(("4get_error_buffer: buf=%p", (void *)buf)); - } - - /* - * Return the pointer to the data... - */ - - return (buf); -} - - -/* - * 'raster_init()' - Initialize error buffer once. - */ - -static void -raster_init(void) -{ - pthread_key_create(&raster_key, raster_destructor); - - DEBUG_printf(("3raster_init(): raster_key=%x(%u)", (unsigned)raster_key, (unsigned)raster_key)); -} - - -/* - * 'raster_destructor()' - Free memory allocated by get_error_buffer(). - */ - -static void -raster_destructor(void *value) /* I - Data to free */ -{ - _cups_raster_error_t *buf = (_cups_raster_error_t *)value; - /* Error buffer */ - - - DEBUG_printf(("3raster_destructor(value=%p)", value)); - - if (buf->start) - free(buf->start); - - free(value); -} - - -#else -/* - * Implement static globals... - */ - -/* - * 'get_error_buffer()' - Return a pointer to thread local storage. - */ - -_cups_raster_error_t * /* O - Pointer to error buffer */ -get_error_buffer(void) -{ - static _cups_raster_error_t buf = { 0, 0, 0 }; - /* Error buffer */ - - - return (&buf); -} -#endif /* HAVE_PTHREAD_H */ |