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init.c
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init.c
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/* Start up the world of vips.
*
* 7/1/04 JC
* - 1st version
* 7/6/05
* - g_type_init() too, so we can use gobject
* 2/9/06
* - also set g_prg_name() and load plugins
* 8/12/06
* - add liboil support
* 5/2/07
* - stop a loop if we're called recursively during VIPS startup ... it
* can happen if (for example) vips_guess_prefix() fails and tries to
* i18n an error message (thanks Christian)
* 8/6/07
* - just warn if plugins fail to load correctly: too annoying to have
* VIPS refuse to start because of a dodgy plugin
* 7/11/07
* - progress feedback option
* 5/8/08
* - load plugins from libdir/vips-x.x
* 5/10/09
* - gtkdoc comments
* 14/3/10
* - init image and region before we start, we need all types to be fully
* constructed before we go parallel
* 18/9/16
* - call _setmaxstdio() on win32
* 4/8/17
* - hide warnings is VIPS_WARNING is set
* 20/4/19
* - set the min stack, if we can
* 17/9/21
* - don't use atexit for cleanup, it's too unreliable ... users should
* call vips_shutdown explicitly if they want a clean exit, though a
* dirty exit is fine
*/
/*
This file is part of VIPS.
VIPS is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
/*
#define DEBUG
*/
/* pthread_setattr_default_np() is a non-portable GNU extension.
*/
#define _GNU_SOURCE
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
#include <glib/gi18n-lib.h>
#ifdef HAVE_PTHREAD_DEFAULT_NP
#include <pthread.h>
#endif /*HAVE_PTHREAD_DEFAULT_NP*/
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif /*HAVE_SYS_PARAM_H*/
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /*HAVE_UNISTD_H*/
#ifdef HAVE_DIRECT_H
#include <direct.h>
#endif /*HAVE_DIRECT_H*/
#include <limits.h>
#include <string.h>
#define VIPS_DISABLE_DEPRECATION_WARNINGS
#include <vips/vips.h>
#include <vips/vector.h>
#include <vips/thread.h>
#include <vips/internal.h>
#if ENABLE_DEPRECATED
#include <vips/vips7compat.h>
#endif
/* abort() on the first warning or error.
*/
int vips__fatal = 0;
/* Use in various small places where we need a mutex and it's not worth
* making a private one.
*/
GMutex *vips__global_lock = NULL;
/* A debugging timer, zero at library init.
*/
GTimer *vips__global_timer = NULL;
/* Keep a copy of the argv0 here.
*/
static char *vips__argv0 = NULL;
/* Keep a copy of the last component of argv0 here.
*/
static char *vips__prgname = NULL;
/* Leak check on exit.
*/
int vips__leak = 0;
#ifdef DEBUG_LEAK
/* Count pixels processed per image here.
*/
GQuark vips__image_pixels_quark = 0;
#endif /*DEBUG_LEAK*/
static gint64 vips_pipe_read_limit = 1024 * 1024 * 1024;
/* The maximum coordinate (ie. dimension) value we allow. This can be
* overridden with the `--vips-max-coord` CLI arg, or the `VIPS_MAX_COORD` env
* var.
*/
static char *vips__max_coord_arg = NULL;
/**
* vips_max_coord_get:
*
* Return the maximum coordinate value. This can be the default, a value set
* set by the `--vips-max-coord` CLI arg, or a value set in the `VIPS_MAX_COORD`
* environment variable.
*
* These strings can include unit specifiers, eg. "10m" for 10 million pixels.
* Values above INT_MAX are not supported.
*
* Returns: The maximum value a coordinate, or image dimension, can have.
*/
int
vips_max_coord_get(void)
{
// CLI overrides env var
const char *as_str = vips__max_coord_arg ?
vips__max_coord_arg : g_getenv("VIPS_MAX_COORD");
if (as_str) {
guint64 size = vips__parse_size(as_str);
return VIPS_CLIP(100, size, INT_MAX);
}
else
return VIPS_DEFAULT_MAX_COORD;
}
/**
* vips_get_argv0:
*
* See also: VIPS_INIT().
*
* Returns: (transfer none): a pointer to an internal copy of the
* argv0 string passed to
* VIPS_INIT(). Do not free this value
*/
const char *
vips_get_argv0(void)
{
return vips__argv0;
}
/**
* vips_get_prgname:
*
* Return the program name. This can be useful for the user tio see,.
*
* See also: VIPS_INIT().
*
* Returns: (transfer none): a pointer to an internal copy of the program
* name. Do not free this value
*/
const char *
vips_get_prgname(void)
{
const char *prgname;
if ((prgname = g_get_prgname()))
return prgname;
else
return vips__prgname;
}
/**
* VIPS_INIT:
* @ARGV0: name of application
*
* VIPS_INIT() starts up the world of VIPS. You should call this on
* program startup before using any other VIPS operations. If you do not call
* VIPS_INIT(), VIPS will call it for you when you use your first VIPS
* operation, but it may not be able to get hold of @ARGV0 and VIPS may
* therefore be unable to find its data files. It is much better to call
* this macro yourself.
*
* @ARGV0 is used to help discover message catalogues if libvips has been
* relocated. If you don't need a relocatable package, you can just pass `""`
* and it'll be fine.
*
* Additionally, VIPS_INIT() can be run from any thread, but it must not be
* called from more than one thread at the same time. This is much easier to
* guarantee if you call it yourself.
*
* VIPS_INIT() is a macro, since it tries to check ABI compatibility
* between the caller and the library. You can also call vips_init(), the
* non-macro version, if macros are not available to you.
*
* You may call VIPS_INIT() many times and vips_shutdown() many times, but you
* must not call VIPS_INIT() after vips_shutdown(). In other words, you cannot
* stop and restart vips.
*
* Use the environment variable `VIPS_MIN_STACK_SIZE` to set the minimum stack
* size. For example, `2m` for a minimum of two megabytes of stack. This can
* be important for systems like musl where the default stack is very small.
*
* VIPS_INIT() does approximately the following:
*
* + checks that the libvips your program is expecting is
* binary-compatible with the vips library you're running against
*
* + sets a minimum stack size, see above
*
* + initialises any libraries that VIPS is using, including GObject
* and the threading system, if necessary
*
* + guesses where the VIPS data files are and sets up
* internationalisation --- see vips_guess_prefix()
*
* + creates the main vips types, including #VipsImage and friends
*
* + loads any plugins from $libdir/vips-x.y/, where x and y are the
* major and minor version numbers for this VIPS.
*
* Example:
*
* |[
* int main(int argc, char **argv)
* {
* if (VIPS_INIT(argv[0]))
* vips_error_exit("unable to start VIPS");
*
* vips_shutdown();
*
* return 0;
* }
* ]|
*
* See also: vips_shutdown(), vips_add_option_entries(), vips_version(),
* vips_guess_prefix(), vips_guess_libdir().
*
* Returns: 0 on success, -1 otherwise
*/
#ifdef ENABLE_MODULES
/* Load all plugins in a directory.
*/
static void
vips_load_plugins(const char *fmt, ...)
{
va_list ap;
char dir_name[VIPS_PATH_MAX];
GDir *dir;
const char *name;
/* Do nothing if modules aren't supported.
*/
if (!g_module_supported())
return;
va_start(ap, fmt);
(void) vips_vsnprintf(dir_name, VIPS_PATH_MAX - 1, fmt, ap);
va_end(ap);
g_info("searching \"%s\"", dir_name);
/* Do nothing if directory is not present.
*/
if (!(dir = g_dir_open(dir_name, 0, NULL)))
return;
while ((name = g_dir_read_name(dir))) {
char path[VIPS_PATH_MAX];
GModule *module;
vips_snprintf(path, VIPS_PATH_MAX - 1,
"%s" G_DIR_SEPARATOR_S "%s", dir_name, name);
g_info("loading \"%s\"", path);
module = g_module_open(path, G_MODULE_BIND_LAZY);
if (module)
/* Modules will almost certainly create new
* types, so they can't be unloaded.
*/
g_module_make_resident(module);
else
g_warning(_("unable to load \"%s\" -- %s"),
path, g_module_error());
}
g_dir_close(dir);
}
#endif /*ENABLE_MODULES*/
/* Install this log handler to hide warning messages.
*/
static void
empty_log_handler(const gchar *log_domain, GLogLevelFlags log_level,
const gchar *message, gpointer user_data)
{
}
/* Attempt to set a minimum stacksize. This can be important on systems with a
* very low default, like musl.
*/
static void
set_stacksize(guint64 size)
{
#ifdef HAVE_PTHREAD_DEFAULT_NP
pthread_attr_t attr;
size_t cur_stack_size;
/* Don't allow stacks less than 2mb.
*/
size = VIPS_MAX(size, 2 * 1024 * 1024);
if (pthread_attr_init(&attr) ||
pthread_attr_getstacksize(&attr, &cur_stack_size)) {
g_warning("set_stacksize: unable to get stack size");
return;
}
if (cur_stack_size < size) {
if (pthread_attr_setstacksize(&attr, size) ||
pthread_setattr_default_np(&attr))
g_warning("set_stacksize: unable to set stack size");
else
g_info("set stack size to %" G_GUINT64_FORMAT "k",
size / (guint64) 1024);
}
#endif /*HAVE_PTHREAD_DEFAULT_NP*/
}
static void
vips_verbose(void)
{
const char *old;
old = g_getenv("G_MESSAGES_DEBUG");
if (!old)
g_setenv("G_MESSAGES_DEBUG", G_LOG_DOMAIN, TRUE);
else if (!g_str_equal(old, "all") &&
!g_strrstr(old, G_LOG_DOMAIN)) {
char *new;
new = g_strconcat(old, " ", G_LOG_DOMAIN, NULL);
g_setenv("G_MESSAGES_DEBUG", new, TRUE);
g_free(new);
}
}
static int
vips_leak(void)
{
char txt[1024];
VipsBuf buf = VIPS_BUF_STATIC(txt);
int n_leaks;
n_leaks = 0;
n_leaks += vips__object_leak();
n_leaks += vips__type_leak();
n_leaks += vips_tracked_get_allocs();
n_leaks += vips_tracked_get_mem();
n_leaks += vips_tracked_get_files();
if (vips_tracked_get_allocs() ||
vips_tracked_get_mem() ||
vips_tracked_get_files()) {
vips_buf_appendf(&buf, "memory: %d allocations, %zd bytes\n",
vips_tracked_get_allocs(), vips_tracked_get_mem());
vips_buf_appendf(&buf, "files: %d open\n",
vips_tracked_get_files());
}
vips_buf_appendf(&buf, "memory: high-water mark ");
vips_buf_append_size(&buf, vips_tracked_get_mem_highwater());
vips_buf_appends(&buf, "\n");
if (strlen(vips_error_buffer()) > 0) {
vips_buf_appendf(&buf, "error buffer: %s",
vips_error_buffer());
n_leaks += strlen(vips_error_buffer());
}
fprintf(stderr, "%s", vips_buf_all(&buf));
n_leaks += vips__print_renders();
#ifdef DEBUG
vips_buffer_dump_all();
#endif /*DEBUG*/
return n_leaks;
}
/**
* vips_init:
* @argv0: name of application
*
* This function starts up libvips, see VIPS_INIT().
*
* This function is for bindings which need to start up vips. C programs
* should use the VIPS_INIT() macro, which does some extra checks.
*
* See also: VIPS_INIT().
*
* Returns: 0 on success, -1 otherwise
*/
int
vips_init(const char *argv0)
{
extern GType vips_system_get_type(void);
extern GType write_thread_state_get_type(void);
extern GType sink_memory_thread_state_get_type(void);
extern GType render_thread_state_get_type(void);
extern GType vips_source_get_type(void);
extern GType vips_source_custom_get_type(void);
extern GType vips_target_get_type(void);
extern GType vips_target_custom_get_type(void);
extern GType vips_g_input_stream_get_type(void);
static gboolean started = FALSE;
static gboolean done = FALSE;
const char *vips_min_stack_size;
gint64 min_stack_size;
const char *prefix;
const char *libdir;
#ifdef ENABLE_NLS
char *locale;
#endif /* ENABLE_NLS */
/* Two stage done handling: 'done' means we've completed, 'started'
* means we're currently initialising. Use this to prevent recursive
* invocation.
*/
if (done)
/* Called more than once, we succeeded, just return OK.
*/
return 0;
if (started)
/* Recursive invocation, something has broken horribly.
* Hopefully the first init will handle it.
*/
return 0;
started = TRUE;
/* Try to set a minimum stacksize, default 2mb. We need to do this
* before any threads start.
*/
min_stack_size = 2 * 1024 * 1024;
if ((vips_min_stack_size = g_getenv("VIPS_MIN_STACK_SIZE")))
min_stack_size = vips__parse_size(vips_min_stack_size);
(void) set_stacksize(min_stack_size);
if (g_getenv("VIPS_INFO")
#if ENABLE_DEPRECATED
|| g_getenv("IM_INFO")
#endif
)
vips_verbose();
if (g_getenv("VIPS_PROFILE"))
vips_profile_set(TRUE);
if (g_getenv("VIPS_LEAK"))
vips_leak_set(TRUE);
if (g_getenv("VIPS_TRACE"))
vips_cache_set_trace(TRUE);
if (g_getenv("VIPS_PIPE_READ_LIMIT"))
vips_pipe_read_limit =
g_ascii_strtoll(g_getenv("VIPS_PIPE_READ_LIMIT"),
NULL, 10);
vips_pipe_read_limit_set(vips_pipe_read_limit);
#ifdef G_OS_WIN32
/* Windows has a limit of 512 files open at once for the fopen() family
* of functions, and 2048 for the _open() family. This raises the limit
* of fopen() to the same level as _open().
*
* It will not go any higher than this, unfortunately.
*/
(void) _setmaxstdio(2048);
#endif /*G_OS_WIN32*/
vips__thread_init();
vips__threadpool_init();
vips__buffer_init();
vips__meta_init();
if (!vips__global_lock)
vips__global_lock = vips_g_mutex_new();
if (!vips__global_timer)
vips__global_timer = g_timer_new();
VIPS_SETSTR(vips__argv0, argv0);
vips__prgname = g_path_get_basename(argv0);
vips__thread_profile_attach("main");
/* We can't do VIPS_GATE_START() until command-line processing
* happens, since vips__thread_profile may not be set yet. Call
* directly.
*/
vips__thread_gate_start("init: main");
vips__thread_gate_start("init: startup");
/* Try to discover our prefix.
*/
if ((prefix = g_getenv("VIPSHOME")))
g_info("VIPSHOME = %s", prefix);
if (!(prefix = vips_guess_prefix(argv0, "VIPSHOME")) ||
!(libdir = vips_guess_libdir(argv0, "VIPSHOME")))
return -1;
g_info("VIPS_PREFIX = %s", VIPS_PREFIX);
g_info("VIPS_LIBDIR = %s", VIPS_LIBDIR);
g_info("prefix = %s", prefix);
g_info("libdir = %s", libdir);
/* Get i18n .mo files from $VIPSHOME/share/locale/.
*/
#ifdef ENABLE_NLS
locale = g_build_filename(prefix, "share", "locale", NULL);
bindtextdomain(GETTEXT_PACKAGE, locale);
g_free(locale);
#ifdef HAVE_BIND_TEXTDOMAIN_CODESET
bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
#endif /* HAVE_BIND_TEXTDOMAIN_CODESET */
#endif /* ENABLE_NLS */
/* Register base vips types.
*/
(void) vips_image_get_type();
(void) vips_region_get_type();
(void) write_thread_state_get_type();
(void) sink_memory_thread_state_get_type();
(void) render_thread_state_get_type();
(void) vips_source_get_type();
(void) vips_source_custom_get_type();
(void) vips_target_get_type();
(void) vips_target_custom_get_type();
vips__meta_init_types();
vips__interpolate_init();
#if ENABLE_DEPRECATED
im__format_init();
#endif
/* Start up operator cache.
*/
vips__cache_init();
/* Recomp reordering system.
*/
vips__reorder_init();
/* Start up packages.
*/
(void) vips_system_get_type();
vips_arithmetic_operation_init();
vips_conversion_operation_init();
vips_create_operation_init();
vips_foreign_operation_init();
vips_resample_operation_init();
vips_colour_operation_init();
vips_histogram_operation_init();
vips_convolution_operation_init();
vips_freqfilt_operation_init();
vips_morphology_operation_init();
vips_draw_operation_init();
vips_mosaicing_operation_init();
vips_g_input_stream_get_type();
#ifdef ENABLE_MODULES
/* Load any vips8 modules from the vips libdir. Keep going, even if
* some modules fail to load.
*
* Only do this if we have been built as a set of loadable
* modules, or we might try loading an operation into a library that
* already has that operation built in.
*/
vips_load_plugins("%s/vips-modules-%d.%d",
libdir, VIPS_MAJOR_VERSION, VIPS_MINOR_VERSION);
#if ENABLE_DEPRECATED
/* We had vips8 plugins for a while.
*/
vips_load_plugins("%s/vips-plugins-%d.%d",
libdir, VIPS_MAJOR_VERSION, VIPS_MINOR_VERSION);
/* Load up any vips7 plugins. We don't error on
* failure, it's too annoying to have VIPS refuse to start because of
* a broken plugin.
*/
if (im_load_plugins("%s/vips-%d.%d",
libdir, VIPS_MAJOR_VERSION, VIPS_MINOR_VERSION)) {
g_warning("%s", vips_error_buffer());
vips_error_clear();
}
/* Also load from libdir :-( kept for back compat convenience.
*/
if (im_load_plugins("%s", libdir)) {
g_warning("%s", vips_error_buffer());
vips_error_clear();
}
#endif /*ENABLE_DEPRECATED*/
#endif /*ENABLE_MODULES*/
/* Detect SIMD features.
*/
vips__vector_init();
#ifdef DEBUG_LEAK
vips__image_pixels_quark =
g_quark_from_static_string("vips-image-pixels");
#endif /*DEBUG_LEAK*/
/* If VIPS_WARNING is defined, suppress all warning messages from vips.
*
* Libraries should not call g_log_set_handler(), it is
* supposed to be for the application layer, but this can be awkward to
* set up if you are using libvips from something like Ruby. Allow this
* env var hack as a workaround.
*/
if (g_getenv("VIPS_WARNING")
#if ENABLE_DEPRECATED
|| g_getenv("IM_WARNING")
#endif
)
g_log_set_handler(G_LOG_DOMAIN, G_LOG_LEVEL_WARNING,
empty_log_handler, NULL);
/* Block any untrusted operations. This must come after plugin load.
*/
if (g_getenv("VIPS_BLOCK_UNTRUSTED"))
vips_block_untrusted_set(TRUE);
done = TRUE;
vips__thread_gate_stop("init: startup");
return 0;
}
/* Call this before vips stuff that uses stuff we need to have inited.
*/
void
vips_check_init(void)
{
/* Pass in a nonsense name for argv0 ... this init path is only here
* for old programs which are missing an vips_init() call. We need
* i18n set up before we can translate.
*/
if (vips_init("vips"))
vips_error_clear();
}
/**
* vips_thread_shutdown:
*
* Free any thread-private data and flush any profiling information.
*
* This function needs to be called when a thread that has been using vips
* exits. It is called for you by vips_shutdown() and for any threads created
* within the #VipsThreadPool.
*
* You will need to call it from threads created in
* other ways or there will be memory leaks. If you do not call it, vips
* will generate a warning message.
*
* It may be called many times, and you can continue using vips after
* calling it. Calling it too often will reduce performance.
*/
void
vips_thread_shutdown(void)
{
vips__thread_profile_detach();
vips__buffer_shutdown();
}
/**
* vips_shutdown:
*
* Call this to drop caches, close plugins, terminate background threads, and
* finalize any internal library testing.
*
* vips_shutdown() is optional. If you don't call it, your platform will
* clean up for you. The only negative consequences are that the leak checker
* and the profiler will not work.
*
* You may call VIPS_INIT() many times and vips_shutdown() many times, but you
* must not call VIPS_INIT() after vips_shutdown(). In other words, you cannot
* stop and restart libvips.
*
* See also: vips_profile_set(), vips_leak_set().
*/
void
vips_shutdown(void)
{
#ifdef DEBUG
printf("vips_shutdown:\n");
#endif /*DEBUG*/
vips_cache_drop_all();
#if ENABLE_DEPRECATED
im_close_plugins();
#endif
/* Mustn't run this more than once. Don't use the VIPS_GATE macro,
* since we don't for gate start.
*/
{
static gboolean done = FALSE;
if (!done)
vips__thread_gate_stop("init: main");
}
vips__render_shutdown();
vips_thread_shutdown();
vips__thread_profile_stop();
vips__threadpool_shutdown();
/* Don't free vips__global_lock -- we want to be able to use
* vips_error_buffer() after vips_shutdown(), since vips_leak() can
* call it.
*/
VIPS_FREE(vips__argv0);
VIPS_FREE(vips__prgname);
VIPS_FREEF(g_timer_destroy, vips__global_timer);
/* In dev releases, always show leaks. But not more than once, it's
* annoying.
*/
#ifndef DEBUG_LEAK
if (vips__leak)
#endif /*DEBUG_LEAK*/
{
static gboolean done = FALSE;
if (!done) {
done = TRUE;
vips_leak();
}
}
}
static gboolean
vips_lib_info_cb(const gchar *option_name, const gchar *value,
gpointer data, GError **error)
{
vips_verbose();
return TRUE;
}
static gboolean
vips_set_fatal_cb(const gchar *option_name, const gchar *value,
gpointer data, GError **error)
{
vips__fatal = 1;
/* Set masks for debugging ... stop on any problem.
*/
g_log_set_always_fatal(
G_LOG_FLAG_RECURSION |
G_LOG_FLAG_FATAL |
G_LOG_LEVEL_ERROR |
G_LOG_LEVEL_CRITICAL |
G_LOG_LEVEL_WARNING);
return TRUE;
}
static gboolean
vips_lib_version_cb(const gchar *option_name, const gchar *value,
gpointer data, GError **error)
{
printf("libvips %s\n", VIPS_VERSION_STRING);
vips_shutdown();
exit(0);
}
static gboolean
vips_lib_config_cb(const gchar *option_name, const gchar *value,
gpointer data, GError **error)
{
printf("%s\n", VIPS_CONFIG);
vips_shutdown();
exit(0);
}
static gboolean
vips_cache_max_cb(const gchar *option_name, const gchar *value,
gpointer data, GError **error)
{
vips_cache_set_max(vips__parse_size(value));
return TRUE;
}
static gboolean
vips_cache_max_memory_cb(const gchar *option_name, const gchar *value,
gpointer data, GError **error)
{
vips_cache_set_max_mem(vips__parse_size(value));
return TRUE;
}
static gboolean
vips_cache_max_files_cb(const gchar *option_name, const gchar *value,
gpointer data, GError **error)
{
vips_cache_set_max_files(vips__parse_size(value));
return TRUE;
}
static GOptionEntry option_entries[] = {
{ "vips-info", 0, G_OPTION_FLAG_HIDDEN | G_OPTION_FLAG_NO_ARG,
G_OPTION_ARG_CALLBACK, (gpointer) &vips_lib_info_cb,
N_("show informative messages"), NULL },
{ "vips-fatal", 0, G_OPTION_FLAG_HIDDEN | G_OPTION_FLAG_NO_ARG,
G_OPTION_ARG_CALLBACK, (gpointer) &vips_set_fatal_cb,
N_("abort on first error or warning"), NULL },
{ "vips-concurrency", 0, 0,
G_OPTION_ARG_INT, &vips__concurrency,
N_("evaluate with N concurrent threads"), "N" },
{ "vips-max-coord", 0, 0,
G_OPTION_ARG_STRING, &vips__max_coord_arg,
N_("maximum coordinate"), NULL },
{ "vips-tile-width", 0, G_OPTION_FLAG_HIDDEN,
G_OPTION_ARG_INT, &vips__tile_width,
N_("set tile width to N (DEBUG)"), "N" },
{ "vips-tile-height", 0, G_OPTION_FLAG_HIDDEN,
G_OPTION_ARG_INT, &vips__tile_height,
N_("set tile height to N (DEBUG)"), "N" },
{ "vips-thinstrip-height", 0, G_OPTION_FLAG_HIDDEN,
G_OPTION_ARG_INT, &vips__thinstrip_height,
N_("set thinstrip height to N (DEBUG)"), "N" },
{ "vips-fatstrip-height", 0, G_OPTION_FLAG_HIDDEN,
G_OPTION_ARG_INT, &vips__fatstrip_height,
N_("set fatstrip height to N (DEBUG)"), "N" },
{ "vips-progress", 0, 0,
G_OPTION_ARG_NONE, &vips__progress,
N_("show progress feedback"), NULL },
{ "vips-leak", 0, 0,
G_OPTION_ARG_NONE, &vips__leak,
N_("leak-check on exit"), NULL },
{ "vips-profile", 0, 0,
G_OPTION_ARG_NONE, &vips__thread_profile,
N_("profile and dump timing on exit"), NULL },
{ "vips-disc-threshold", 0, 0,
G_OPTION_ARG_STRING, &vips__disc_threshold,
N_("images larger than N are decompressed to disc"), "N" },
{ "vips-novector", 0, G_OPTION_FLAG_REVERSE,
G_OPTION_ARG_NONE, &vips__vector_enabled,
N_("disable vectorised versions of operations"), NULL },
{ "vips-cache-max", 0, 0,
G_OPTION_ARG_CALLBACK, (gpointer) &vips_cache_max_cb,
N_("cache at most N operations"), "N" },
{ "vips-cache-max-memory", 0, 0,
G_OPTION_ARG_CALLBACK, (gpointer) &vips_cache_max_memory_cb,
N_("cache at most N bytes in memory"), "N" },
{ "vips-cache-max-files", 0, 0,
G_OPTION_ARG_CALLBACK, (gpointer) &vips_cache_max_files_cb,
N_("allow at most N open files"), "N" },
{ "vips-cache-trace", 0, 0,
G_OPTION_ARG_NONE, &vips__cache_trace,
N_("trace operation cache"), NULL },
{ "vips-cache-dump", 0, 0,
G_OPTION_ARG_NONE, &vips__cache_dump,
N_("dump operation cache on exit"), NULL },
{ "vips-version", 0, G_OPTION_FLAG_NO_ARG,
G_OPTION_ARG_CALLBACK, (gpointer) &vips_lib_version_cb,
N_("print libvips version"), NULL },
{ "vips-config", 0, G_OPTION_FLAG_NO_ARG,
G_OPTION_ARG_CALLBACK, (gpointer) &vips_lib_config_cb,
N_("print libvips config"), NULL },
{ "vips-pipe-read-limit", 0, 0,
G_OPTION_ARG_INT64, (gpointer) &vips_pipe_read_limit,
N_("read at most this many bytes from a pipe"), NULL },
{ NULL }
};
/**
* vips_add_option_entries:
* @option_group: group to add to
*
* Add the standard vips %GOptionEntry to a %GOptionGroup.
*
* See also: g_option_group_new().
*/
void
vips_add_option_entries(GOptionGroup *option_group)
{
g_option_group_add_entries(option_group, option_entries);
}
/* Find the prefix part of a dir ... name is the name of this prog from argv0.
*
* dir name guess prefix
*
* /home/john/vips-7.6.4/bin/vips-7.6 vips-7.6 /home/john/vips-7.6.4
* /usr/local/bin/ip ip /usr/local
*
* all other forms ... return NULL.
*/
static char *
extract_prefix(const char *dir, const char *name)
{
char edir[VIPS_PATH_MAX];
static char vname[VIPS_PATH_MAX];
int i;
g_info("trying for dir = \"%s\", name = \"%s\"", dir, name);
/* Is dir relative? Prefix with cwd.
*/
if (!g_path_is_absolute(dir)) {
char *cwd;
cwd = g_get_current_dir();
vips_snprintf(edir, VIPS_PATH_MAX,
"%s" G_DIR_SEPARATOR_S "%s", cwd, dir);
g_free(cwd);
}
else {
vips_strncpy(edir, dir, VIPS_PATH_MAX);
}
/* Chop off the trailing prog name, plus the trailing
* G_DIR_SEPARATOR_S.
*/
if (!vips_ispostfix(edir, name))
return NULL;
vips_strncpy(vname, edir, VIPS_PATH_MAX);
vname[strlen(edir) - strlen(name) - 1] = '\0';
/* Remove any "/./", any trailing "/.", any trailing "/".
*/
for (i = 0; i < (int) strlen(vname); i++)
if (vips_isprefix(G_DIR_SEPARATOR_S "." G_DIR_SEPARATOR_S,
vname + i))
memmove(vname + i, vname + i + 2,
strlen(vname + i + 2) + 1);
if (vips_ispostfix(vname, G_DIR_SEPARATOR_S "."))
vname[strlen(vname) - 2] = '\0';
if (vips_ispostfix(vname, G_DIR_SEPARATOR_S))
vname[strlen(vname) - 1] = '\0';
g_info("canonicalised path = \"%s\"", vname);
/* Ought to be a "/bin" at the end now.
*/
if (!vips_ispostfix(vname, G_DIR_SEPARATOR_S "bin"))
return NULL;
vname[strlen(vname) - strlen(G_DIR_SEPARATOR_S "bin")] = '\0';
g_info("found \"%s\"", vname);