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Input Stream bindings (#18)

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* Initial aws_input_stream <-> php_stream implementation

* Added comments about useful references

* updated aws-crt-ffi to get latest aws-lc, faster builds

* Fixed inconsistency between PHP5/7 versions of php_stream_from_zval
This commit is contained in:
Justin Boswell
2021-03-19 13:29:14 -07:00
committed by GitHub
parent 73ecd3bc8a
commit 974fe3d74a
11 changed files with 441 additions and 49 deletions
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ext/crt.c
+167 -1
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@@ -10,6 +10,15 @@
#include "awscrt_arginfo.h"
/* Helpful references for this file:
* zend_parse_parameters and friends -
* https://git.php.net/?p=php-src.git;a=blob;f=docs/parameter-parsing-api.md;h=c962fc6ee58cc756aaac9e65759b7d5ea5c18fc4;hb=HEAD
* https://git.php.net/?p=php-src.git;a=blob;f=docs/self-contained-extensions.md;h=47f4c636baca8ca195118e2cc234ac7fd2842c1b;hb=HEAD
* Examples:
* Curl extension: https://github.com/php/php-src/blob/PHP-5.6/ext/curl/interface.c
* libuv extension: https://github.com/amphp/ext-uv/blob/master/php_uv.c
*/
ZEND_DECLARE_MODULE_GLOBALS(awscrt);
PHP_INI_BEGIN()
@@ -117,7 +126,7 @@ PHP_FUNCTION(aws_crt_event_loop_group_new) {
}
aws_crt_event_loop_group_options *options = (void *)php_options;
struct aws_event_loop_group *elg = aws_crt_event_loop_group_new(options);
aws_crt_event_loop_group *elg = aws_crt_event_loop_group_new(options);
RETURN_LONG((zend_ulong)elg);
}
@@ -132,6 +141,163 @@ PHP_FUNCTION(aws_crt_event_loop_group_release) {
aws_crt_event_loop_group_release(elg);
}
PHP_FUNCTION(aws_crt_input_stream_options_new) {
if (zend_parse_parameters_none() == FAILURE) {
RETURN_NULL();
}
aws_crt_input_stream_options *options = aws_crt_input_stream_options_new();
RETURN_LONG((zend_ulong)options);
}
PHP_FUNCTION(aws_crt_input_stream_options_release) {
zend_ulong php_options = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &php_options) == FAILURE) {
return;
}
aws_crt_input_stream_options *options = (void *)php_options;
aws_crt_input_stream_options_release(options);
}
/* PHP streams info:
* https://git.php.net/?p=php-src.git;a=blob;f=docs/streams.md;h=0ec3846d68bf70067297d8a6c691d2591c49b48a;hb=HEAD
* https://github.com/php/php-src/blob/PHP-5.6.0/main/php_streams.h
*/
PHP_FUNCTION(aws_crt_input_stream_options_set_user_data) {
zend_ulong php_options = 0;
zval *user_data = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "lz", &php_options, &user_data) == FAILURE) {
return;
}
aws_crt_input_stream_options *options = (void *)php_options;
php_stream *stream = NULL;
AWS_PHP_STREAM_FROM_ZVAL(stream, user_data);
aws_crt_input_stream_options_set_user_data(options, stream);
}
static int s_php_stream_seek(void *user_data, int64_t offset, aws_crt_input_stream_seek_basis basis) {
php_stream *stream = user_data;
return php_stream_seek(stream, offset, basis);
}
static int s_php_stream_read(void *user_data, uint8_t *dest, size_t dest_length) {
php_stream *stream = user_data;
return php_stream_read(stream, dest, dest_length) != 0;
}
static int s_php_stream_get_length(void *user_data, int64_t *out_length) {
php_stream *stream = user_data;
size_t pos = php_stream_tell(stream);
php_stream_seek(stream, 0, SEEK_END);
*out_length = php_stream_tell(stream);
php_stream_seek(stream, pos, SEEK_SET);
return 0;
}
static int s_php_stream_get_status(void *user_data, aws_crt_input_stream_status *out_status) {
php_stream *stream = user_data;
out_status->is_valid = stream != NULL;
/* We would like to use php_stream_eof here, but certain streams (notably php://memory)
* are not actually capable of EOF, so we get to do it the hard way */
size_t length = 0, pos = 0;
s_php_stream_get_length(stream, &length);
pos = php_stream_tell(stream);
out_status->is_end_of_stream = pos == length;
return 0;
}
static void s_php_stream_destroy(void *user_data) {
(void)user_data;
/* no op, stream will be freed by PHP refcount dropping from InputStream::stream */
}
PHP_FUNCTION(aws_crt_input_stream_new) {
zend_ulong php_options = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &php_options) == FAILURE) {
RETURN_NULL();
}
aws_crt_input_stream_options *options = (void *)php_options;
aws_crt_input_stream_options_set_seek(options, s_php_stream_seek);
aws_crt_input_stream_options_set_read(options, s_php_stream_read);
aws_crt_input_stream_options_set_get_status(options, s_php_stream_get_status);
aws_crt_input_stream_options_set_get_length(options, s_php_stream_get_length);
aws_crt_input_stream_options_set_destroy(options, s_php_stream_destroy);
aws_crt_input_stream *stream = aws_crt_input_stream_new(options);
RETURN_LONG((zend_ulong)stream);
}
PHP_FUNCTION(aws_crt_input_stream_release) {
zend_ulong php_stream = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &php_stream) == FAILURE) {
RETURN_NULL();
}
aws_crt_input_stream *stream = (void *)php_stream;
aws_crt_input_stream_release(stream);
}
PHP_FUNCTION(aws_crt_input_stream_seek) {
zend_ulong php_stream = 0;
zend_ulong offset = 0;
zend_ulong basis = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "lll", &php_stream, &offset, &basis) == FAILURE) {
RETURN_NULL();
}
aws_crt_input_stream *stream = (void *)php_stream;
RETURN_LONG(aws_crt_input_stream_seek(stream, offset, basis));
}
PHP_FUNCTION(aws_crt_input_stream_read) {
zend_ulong php_stream = 0;
zend_ulong length = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ll", &php_stream, &length) == FAILURE) {
RETURN_NULL();
}
aws_crt_input_stream *stream = (void *)php_stream;
uint8_t *buf = emalloc(length);
int ret = aws_crt_input_stream_read(stream, buf, length);
AWS_RETURN_STRINGL(buf, length);
efree(buf);
}
PHP_FUNCTION(aws_crt_input_stream_eof) {
zend_ulong php_stream = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &php_stream) == FAILURE) {
RETURN_NULL();
}
aws_crt_input_stream *stream = (void *)php_stream;
aws_crt_input_stream_status status = {0};
aws_crt_input_stream_get_status(stream, &status);
RETURN_BOOL(status.is_end_of_stream);
}
PHP_FUNCTION(aws_crt_input_stream_get_length) {
zend_ulong php_stream = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &php_stream) == FAILURE) {
RETURN_NULL();
}
aws_crt_input_stream *stream = (void *)php_stream;
size_t length = 0;
aws_crt_input_stream_get_length(stream, &length);
RETURN_LONG(length);
}
PHP_FUNCTION(aws_crt_credentials_options_new) {
aws_crt_credentials_options *options = aws_crt_credentials_options_new();
RETURN_LONG((zend_ulong)options);