--- /dev/null
+/*
+ +----------------------------------------------------------------------+
+ | PHP version 4.0 |
+ +----------------------------------------------------------------------+
+ | Copyright (c) 1997, 1998, 1999, 2000, 2001 The PHP Group |
+ +----------------------------------------------------------------------+
+ | This source file is subject to version 2.02 of the PHP license, |
+ | that is bundled with this package in the file LICENSE, and is |
+ | available at through the world-wide-web at |
+ | http://www.php.net/license/2_02.txt. |
+ | If you did not receive a copy of the PHP license and are unable to |
+ | obtain it through the world-wide-web, please send a note to |
+ | license@php.net so we can mail you a copy immediately. |
+ +----------------------------------------------------------------------+
+ | Authors: Sterling Hughes <sterling@php.net> |
+ +----------------------------------------------------------------------+
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "php.h"
+#include "php_ini.h"
+#include "ext/standard/info.h"
+#include "php_dio.h"
+
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#define le_fd_name "Direct I/O File Descriptor"
+static int le_fd;
+
+function_entry dio_functions[] = {
+ PHP_FE(dio_open, NULL)
+ PHP_FE(dio_truncate, NULL)
+ PHP_FE(dio_stat, NULL)
+ PHP_FE(dio_seek, NULL)
+ PHP_FE(dio_fcntl, NULL)
+ PHP_FE(dio_read, NULL)
+ PHP_FE(dio_write, NULL)
+ PHP_FE(dio_close, NULL)
+ {NULL, NULL, NULL}
+};
+
+
+zend_module_entry dio_module_entry = {
+ STANDARD_MODULE_HEADER,
+ "dio",
+ dio_functions,
+ PHP_MINIT(dio),
+ NULL,
+ NULL,
+ NULL,
+ PHP_MINFO(dio),
+ "0.1",
+ STANDARD_MODULE_PROPERTIES
+};
+
+
+#ifdef COMPILE_DL_DIO
+ZEND_GET_MODULE(dio)
+#endif
+
+
+static void _dio_close_fd(zend_rsrc_list_entry *rsrc TSRMLS_DC)
+{
+ php_fd_t *f = (php_fd_t *) rsrc->ptr;
+ close(f->fd);
+ free(f);
+}
+
+#define RDIOC(c) REGISTER_LONG_CONSTANT(#c, c, CONST_CS | CONST_PERSISTENT)
+
+PHP_MINIT_FUNCTION(dio)
+{
+ le_fd = zend_register_list_destructors_ex(_dio_close_fd, NULL, le_fd_name, module_number);
+
+ RDIOC(O_RDONLY);
+ RDIOC(O_WRONLY);
+ RDIOC(O_RDWR);
+ RDIOC(O_CREAT);
+ RDIOC(O_EXCL);
+ RDIOC(O_TRUNC);
+ RDIOC(O_APPEND);
+ RDIOC(O_NONBLOCK);
+ RDIOC(O_NDELAY);
+ RDIOC(O_SYNC);
+ RDIOC(S_IRWXU);
+ RDIOC(S_IRUSR);
+ RDIOC(S_IWUSR);
+ RDIOC(S_IXUSR);
+ RDIOC(S_IRWXG);
+ RDIOC(S_IRGRP);
+ RDIOC(S_IWGRP);
+ RDIOC(S_IXGRP);
+ RDIOC(S_IRWXO);
+ RDIOC(S_IROTH);
+ RDIOC(S_IWOTH);
+ RDIOC(S_IXOTH);
+ RDIOC(F_DUPFD);
+ RDIOC(F_GETFD);
+ RDIOC(F_GETFL);
+ RDIOC(F_SETFL);
+ RDIOC(F_GETLK);
+ RDIOC(F_SETLK);
+ RDIOC(F_SETLKW);
+ RDIOC(F_SETOWN);
+ RDIOC(F_GETOWN);
+ RDIOC(F_UNLCK);
+ RDIOC(F_RDLCK);
+ RDIOC(F_WRLCK);
+
+ return SUCCESS;
+}
+
+PHP_MINFO_FUNCTION(dio)
+{
+ php_info_print_table_start();
+ php_info_print_table_header(2, "dio support", "enabled");
+ php_info_print_table_end();
+}
+
+static void new_php_fd(php_fd_t **f, int fd)
+{
+ *f = malloc(sizeof(php_fd_t));
+ (*f)->fd = fd;
+}
+
+/* {{{ proto resource dio_open(string filename, int flags[, int mode])
+ Open a new filename with specified permissions of flags and creation permissions of mode */
+PHP_FUNCTION(dio_open)
+{
+ php_fd_t *f;
+ char *file_name;
+ int file_name_length;
+ int flags;
+ mode_t mode = 0;
+ int fd;
+
+ if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sl|l", &file_name, &file_name_length, &flags, &mode) == FAILURE) {
+ return;
+ }
+
+ if (ZEND_NUM_ARGS() == 3) {
+ fd = open(file_name, flags, mode);
+ }
+ else {
+ fd = open(file_name, flags);
+ }
+
+ if (fd == -1) {
+ php_error(E_WARNING, "Cannot open file %s with flags %d and permissions %d: %s",
+ file_name, flags, mode, strerror(errno));
+ RETURN_FALSE;
+ }
+
+ new_php_fd(&f, fd);
+ ZEND_REGISTER_RESOURCE(return_value, f, le_fd);
+}
+/* }}} */
+
+/* {{{ string dio_read(resource fd[, int n])
+ Read n bytes from fd and return them, if n is not specified, read 1k */
+PHP_FUNCTION(dio_read)
+{
+ zval *r_fd;
+ php_fd_t *f;
+ char *data;
+ int bytes = 1024;
+ ssize_t res;
+
+ if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r|l", &r_fd, &bytes) == FAILURE) {
+ return;
+ }
+ ZEND_FETCH_RESOURCE(f, php_fd_t *, &r_fd, -1, le_fd_name, le_fd);
+
+ data = emalloc(bytes + 1);
+ res = read(f->fd, data, bytes);
+ if (res <= 0) {
+ RETURN_NULL();
+ }
+
+ data[res] = 0;
+ RETURN_STRINGL(data, res, 0);
+}
+/* }}} */
+
+/* {{{ int dio_write(resource fd, string data[, int len])
+ Write data to fd with optional truncation at length */
+PHP_FUNCTION(dio_write)
+{
+ zval *r_fd;
+ php_fd_t *f;
+ char *data;
+ size_t data_len;
+ size_t trunc_len = 0;
+ ssize_t res;
+
+ if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rs|l", &r_fd, &data, &data_len, &trunc_len) == FAILURE) {
+ return;
+ }
+ ZEND_FETCH_RESOURCE(f, php_fd_t *, &r_fd, -1, le_fd_name, le_fd);
+
+ res = write(f->fd, data, trunc_len ? trunc_len : data_len);
+ if (res == -1) {
+ php_error(E_WARNING, "Cannot write data to file descriptor %d, %s", f->fd, strerror(errno));
+ }
+
+ RETURN_LONG(res);
+}
+/* }}} */
+
+/* {{{ proto bool dio_truncate(resource fd, int offset)
+ Truncate file descriptor fd to offset bytes */
+PHP_FUNCTION(dio_truncate)
+{
+ zval *r_fd;
+ php_fd_t *f;
+ off_t offset;
+
+ if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rl", &r_fd, &offset) == FAILURE) {
+ return;
+ }
+ ZEND_FETCH_RESOURCE(f, php_fd_t *, &r_fd, -1, le_fd_name, le_fd);
+
+ if (ftruncate(f->fd, offset) == -1) {
+ php_error(E_WARNING, "Couldn't truncate %d to %d bytes: %s", f->fd, offset, strerror(errno));
+ RETURN_FALSE;
+ }
+
+ RETURN_TRUE;
+}
+/* }}} */
+
+#define ADD_FIELD(f, v) add_assoc_long_ex(return_value, (f), sizeof(f), v);
+
+/* {{{ proto array dio_stat(resource fd)
+ Get stat information about the file descriptor fd */
+PHP_FUNCTION(dio_stat)
+{
+ zval *r_fd;
+ php_fd_t *f;
+ struct stat s;
+
+ if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &r_fd) == FAILURE) {
+ return;
+ }
+ ZEND_FETCH_RESOURCE(f, php_fd_t *, &r_fd, -1, le_fd_name, le_fd);
+
+ if (fstat(f->fd, &s) == -1) {
+ php_error(E_WARNING, "Cannot stat %d: %s", f->fd, strerror(errno));
+ RETURN_FALSE;
+ }
+
+ array_init(return_value);
+ ADD_FIELD("device", s.st_dev);
+ ADD_FIELD("inode", s.st_ino);
+ ADD_FIELD("mode", s.st_mode);
+ ADD_FIELD("nlink", s.st_nlink);
+ ADD_FIELD("uid", s.st_uid);
+ ADD_FIELD("gid", s.st_gid);
+ ADD_FIELD("device_type", s.st_rdev);
+ ADD_FIELD("size", s.st_size);
+ ADD_FIELD("block_size", s.st_blksize);
+ ADD_FIELD("blocks", s.st_blocks);
+ ADD_FIELD("atime", s.st_atime);
+ ADD_FIELD("mtime", s.st_mtime);
+ ADD_FIELD("ctime", s.st_ctime);
+}
+/* }}} */
+
+/* {{{ proto int dio_seek(resource fd, int pos, int whence)
+ Seek to pos on fd from whence */
+PHP_FUNCTION(dio_seek)
+{
+ zval *r_fd;
+ php_fd_t *f;
+ off_t offset;
+ int whence = SEEK_SET;
+
+ if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rl|l", &r_fd, &offset, &whence) == FAILURE) {
+ return;
+ }
+ ZEND_FETCH_RESOURCE(f, php_fd_t *, &r_fd, -1, le_fd_name, le_fd);
+
+ RETURN_LONG(lseek(f->fd, offset, whence));
+}
+/* }}} */
+
+/* {{{ proto mixed dio_fcntl(resource fd, int cmd[, mixed arg])
+ Perform a c library fcntl on fd */
+PHP_FUNCTION(dio_fcntl)
+{
+ zval *r_fd;
+ zval *arg;
+ php_fd_t *f;
+ int cmd;
+
+ if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rl|z", &r_fd, &cmd, &arg) == FAILURE) {
+ return;
+ }
+ ZEND_FETCH_RESOURCE(f, php_fd_t *, &r_fd, -1, le_fd_name, le_fd);
+
+ switch (cmd) {
+ case F_SETLK:
+ case F_SETLKW: {
+ zval **element;
+ struct flock lk = {0};
+ HashTable *fh = HASH_OF(arg);
+ if (fh) {
+ if (zend_hash_find(fh, "start", 5, (void **) &element) == FAILURE) {
+ lk.l_start = 0;
+ }
+ else {
+ lk.l_start = Z_LVAL_PP(element);
+ }
+
+ if (zend_hash_find(fh, "length", 6, (void **) &element) == FAILURE) {
+ lk.l_len = 0;
+ }
+ else {
+ lk.l_len = Z_LVAL_PP(element);
+ }
+
+ if (zend_hash_find(fh, "whence", 6, (void **) &element) == FAILURE) {
+ lk.l_whence = 0;
+ }
+ else {
+ lk.l_whence = SEEK_SET;
+ }
+
+ if (zend_hash_find(fh, "type", 6, (void **) &element) == FAILURE) {
+ lk.l_type = 0;
+ }
+ else {
+ lk.l_type = Z_LVAL_PP(element);
+ }
+ }
+ else {
+ lk.l_start = 0;
+ lk.l_len = 0;
+ lk.l_whence = SEEK_SET;
+ lk.l_type = Z_LVAL_P(arg);
+ }
+
+ RETURN_LONG(fcntl(f->fd, cmd, &lk));
+ break;
+ }
+ case F_GETLK: {
+ struct flock lk = {0};
+
+ fcntl(f->fd, cmd, &lk);
+
+ array_init(return_value);
+ add_assoc_long(return_value, "type", lk.l_type);
+ add_assoc_long(return_value, "whence", lk.l_whence);
+ add_assoc_long(return_value, "start", lk.l_start);
+ add_assoc_long(return_value, "length", lk.l_len);
+ add_assoc_long(return_value, "pid", lk.l_pid);
+
+ break;
+ }
+ case F_DUPFD: {
+ php_fd_t *new_f;
+
+ new_php_fd(&new_f, fcntl(f->fd, cmd, Z_LVAL_P(arg)));
+ ZEND_REGISTER_RESOURCE(return_value, new_f, le_fd);
+ break;
+ }
+ default:
+ RETURN_LONG(fcntl(f->fd, cmd, Z_LVAL_P(arg)));
+ }
+}
+/* }}} */
+
+/* {{{ proto void dio_close(resource fd)
+ Close the file descriptor given by fd */
+PHP_FUNCTION(dio_close)
+{
+ zval *r_fd;
+ php_fd_t *f;
+
+ if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &r_fd) == FAILURE) {
+ return;
+ }
+ ZEND_FETCH_RESOURCE(f, php_fd_t *, &r_fd, -1, le_fd_name, le_fd);
+
+ zend_list_delete(Z_LVAL_P(r_fd));
+}
+/* }}} */
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * tab-width: 4
+ * End:
+ * vim600: fdm=marker
+ * vim: sw=4 ts=4 noet
+ */
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