aboutsummaryrefslogtreecommitdiffhomepage
path: root/src/core/lib/compression
diff options
context:
space:
mode:
Diffstat (limited to 'src/core/lib/compression')
-rw-r--r--src/core/lib/compression/algorithm_metadata.h8
-rw-r--r--src/core/lib/compression/compression.c41
-rw-r--r--src/core/lib/compression/message_compress.c46
-rw-r--r--src/core/lib/compression/message_compress.h6
4 files changed, 52 insertions, 49 deletions
diff --git a/src/core/lib/compression/algorithm_metadata.h b/src/core/lib/compression/algorithm_metadata.h
index 1f9cc15f23..58dfe628b4 100644
--- a/src/core/lib/compression/algorithm_metadata.h
+++ b/src/core/lib/compression/algorithm_metadata.h
@@ -38,16 +38,16 @@
#include "src/core/lib/transport/metadata.h"
/** Return compression algorithm based metadata value */
-grpc_mdstr *grpc_compression_algorithm_mdstr(
+grpc_slice grpc_compression_algorithm_slice(
grpc_compression_algorithm algorithm);
/** Return compression algorithm based metadata element (grpc-encoding: xxx) */
-grpc_mdelem *grpc_compression_encoding_mdelem(
+grpc_mdelem grpc_compression_encoding_mdelem(
grpc_compression_algorithm algorithm);
/** Find compression algorithm based on passed in mdstr - returns
* GRPC_COMPRESS_ALGORITHM_COUNT on failure */
-grpc_compression_algorithm grpc_compression_algorithm_from_mdstr(
- grpc_mdstr *str);
+grpc_compression_algorithm grpc_compression_algorithm_from_slice(
+ grpc_slice str);
#endif /* GRPC_CORE_LIB_COMPRESSION_ALGORITHM_METADATA_H */
diff --git a/src/core/lib/compression/compression.c b/src/core/lib/compression/compression.c
index 54efb5e855..f8777a6f6c 100644
--- a/src/core/lib/compression/compression.c
+++ b/src/core/lib/compression/compression.c
@@ -41,30 +41,24 @@
#include "src/core/lib/surface/api_trace.h"
#include "src/core/lib/transport/static_metadata.h"
-int grpc_compression_algorithm_parse(const char *name, size_t name_length,
+int grpc_compression_algorithm_parse(grpc_slice name,
grpc_compression_algorithm *algorithm) {
/* we use strncmp not only because it's safer (even though in this case it
* doesn't matter, given that we are comparing against string literals, but
* because this way we needn't have "name" nil-terminated (useful for slice
* data, for example) */
- GRPC_API_TRACE(
- "grpc_compression_algorithm_parse("
- "name=%*.*s, name_length=%lu, algorithm=%p)",
- 5, ((int)name_length, (int)name_length, name, (unsigned long)name_length,
- algorithm));
- if (name_length == 0) {
- return 0;
- }
- if (strncmp(name, "identity", name_length) == 0) {
+ if (grpc_slice_cmp(name, GRPC_MDSTR_IDENTITY) == 0) {
*algorithm = GRPC_COMPRESS_NONE;
- } else if (strncmp(name, "gzip", name_length) == 0) {
+ return 1;
+ } else if (grpc_slice_cmp(name, GRPC_MDSTR_GZIP) == 0) {
*algorithm = GRPC_COMPRESS_GZIP;
- } else if (strncmp(name, "deflate", name_length) == 0) {
+ return 1;
+ } else if (grpc_slice_cmp(name, GRPC_MDSTR_DEFLATE) == 0) {
*algorithm = GRPC_COMPRESS_DEFLATE;
+ return 1;
} else {
return 0;
}
- return 1;
}
int grpc_compression_algorithm_name(grpc_compression_algorithm algorithm,
@@ -87,15 +81,16 @@ int grpc_compression_algorithm_name(grpc_compression_algorithm algorithm,
return 0;
}
-grpc_compression_algorithm grpc_compression_algorithm_from_mdstr(
- grpc_mdstr *str) {
- if (str == GRPC_MDSTR_IDENTITY) return GRPC_COMPRESS_NONE;
- if (str == GRPC_MDSTR_DEFLATE) return GRPC_COMPRESS_DEFLATE;
- if (str == GRPC_MDSTR_GZIP) return GRPC_COMPRESS_GZIP;
+grpc_compression_algorithm grpc_compression_algorithm_from_slice(
+ grpc_slice str) {
+ if (grpc_slice_cmp(str, GRPC_MDSTR_IDENTITY) == 0) return GRPC_COMPRESS_NONE;
+ if (grpc_slice_cmp(str, GRPC_MDSTR_DEFLATE) == 0)
+ return GRPC_COMPRESS_DEFLATE;
+ if (grpc_slice_cmp(str, GRPC_MDSTR_GZIP) == 0) return GRPC_COMPRESS_GZIP;
return GRPC_COMPRESS_ALGORITHMS_COUNT;
}
-grpc_mdstr *grpc_compression_algorithm_mdstr(
+grpc_slice grpc_compression_algorithm_slice(
grpc_compression_algorithm algorithm) {
switch (algorithm) {
case GRPC_COMPRESS_NONE:
@@ -105,12 +100,12 @@ grpc_mdstr *grpc_compression_algorithm_mdstr(
case GRPC_COMPRESS_GZIP:
return GRPC_MDSTR_GZIP;
case GRPC_COMPRESS_ALGORITHMS_COUNT:
- return NULL;
+ return grpc_empty_slice();
}
- return NULL;
+ return grpc_empty_slice();
}
-grpc_mdelem *grpc_compression_encoding_mdelem(
+grpc_mdelem grpc_compression_encoding_mdelem(
grpc_compression_algorithm algorithm) {
switch (algorithm) {
case GRPC_COMPRESS_NONE:
@@ -122,7 +117,7 @@ grpc_mdelem *grpc_compression_encoding_mdelem(
default:
break;
}
- return NULL;
+ return GRPC_MDNULL;
}
void grpc_compression_options_init(grpc_compression_options *opts) {
diff --git a/src/core/lib/compression/message_compress.c b/src/core/lib/compression/message_compress.c
index 6c245acf61..49beb953b0 100644
--- a/src/core/lib/compression/message_compress.c
+++ b/src/core/lib/compression/message_compress.c
@@ -40,10 +40,12 @@
#include <zlib.h>
+#include "src/core/lib/slice/slice_internal.h"
+
#define OUTPUT_BLOCK_SIZE 1024
-static int zlib_body(z_stream* zs, grpc_slice_buffer* input,
- grpc_slice_buffer* output,
+static int zlib_body(grpc_exec_ctx* exec_ctx, z_stream* zs,
+ grpc_slice_buffer* input, grpc_slice_buffer* output,
int (*flate)(z_stream* zs, int flush)) {
int r;
int flush;
@@ -87,7 +89,7 @@ static int zlib_body(z_stream* zs, grpc_slice_buffer* input,
return 1;
error:
- grpc_slice_unref(outbuf);
+ grpc_slice_unref_internal(exec_ctx, outbuf);
return 0;
}
@@ -97,8 +99,8 @@ static void* zalloc_gpr(void* opaque, unsigned int items, unsigned int size) {
static void zfree_gpr(void* opaque, void* address) { gpr_free(address); }
-static int zlib_compress(grpc_slice_buffer* input, grpc_slice_buffer* output,
- int gzip) {
+static int zlib_compress(grpc_exec_ctx* exec_ctx, grpc_slice_buffer* input,
+ grpc_slice_buffer* output, int gzip) {
z_stream zs;
int r;
size_t i;
@@ -110,10 +112,11 @@ static int zlib_compress(grpc_slice_buffer* input, grpc_slice_buffer* output,
r = deflateInit2(&zs, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 15 | (gzip ? 16 : 0),
8, Z_DEFAULT_STRATEGY);
GPR_ASSERT(r == Z_OK);
- r = zlib_body(&zs, input, output, deflate) && output->length < input->length;
+ r = zlib_body(exec_ctx, &zs, input, output, deflate) &&
+ output->length < input->length;
if (!r) {
for (i = count_before; i < output->count; i++) {
- grpc_slice_unref(output->slices[i]);
+ grpc_slice_unref_internal(exec_ctx, output->slices[i]);
}
output->count = count_before;
output->length = length_before;
@@ -122,8 +125,8 @@ static int zlib_compress(grpc_slice_buffer* input, grpc_slice_buffer* output,
return r;
}
-static int zlib_decompress(grpc_slice_buffer* input, grpc_slice_buffer* output,
- int gzip) {
+static int zlib_decompress(grpc_exec_ctx* exec_ctx, grpc_slice_buffer* input,
+ grpc_slice_buffer* output, int gzip) {
z_stream zs;
int r;
size_t i;
@@ -134,10 +137,10 @@ static int zlib_decompress(grpc_slice_buffer* input, grpc_slice_buffer* output,
zs.zfree = zfree_gpr;
r = inflateInit2(&zs, 15 | (gzip ? 16 : 0));
GPR_ASSERT(r == Z_OK);
- r = zlib_body(&zs, input, output, inflate);
+ r = zlib_body(exec_ctx, &zs, input, output, inflate);
if (!r) {
for (i = count_before; i < output->count; i++) {
- grpc_slice_unref(output->slices[i]);
+ grpc_slice_unref_internal(exec_ctx, output->slices[i]);
}
output->count = count_before;
output->length = length_before;
@@ -149,12 +152,13 @@ static int zlib_decompress(grpc_slice_buffer* input, grpc_slice_buffer* output,
static int copy(grpc_slice_buffer* input, grpc_slice_buffer* output) {
size_t i;
for (i = 0; i < input->count; i++) {
- grpc_slice_buffer_add(output, grpc_slice_ref(input->slices[i]));
+ grpc_slice_buffer_add(output, grpc_slice_ref_internal(input->slices[i]));
}
return 1;
}
-static int compress_inner(grpc_compression_algorithm algorithm,
+static int compress_inner(grpc_exec_ctx* exec_ctx,
+ grpc_compression_algorithm algorithm,
grpc_slice_buffer* input, grpc_slice_buffer* output) {
switch (algorithm) {
case GRPC_COMPRESS_NONE:
@@ -162,9 +166,9 @@ static int compress_inner(grpc_compression_algorithm algorithm,
rely on that here */
return 0;
case GRPC_COMPRESS_DEFLATE:
- return zlib_compress(input, output, 0);
+ return zlib_compress(exec_ctx, input, output, 0);
case GRPC_COMPRESS_GZIP:
- return zlib_compress(input, output, 1);
+ return zlib_compress(exec_ctx, input, output, 1);
case GRPC_COMPRESS_ALGORITHMS_COUNT:
break;
}
@@ -172,24 +176,26 @@ static int compress_inner(grpc_compression_algorithm algorithm,
return 0;
}
-int grpc_msg_compress(grpc_compression_algorithm algorithm,
+int grpc_msg_compress(grpc_exec_ctx* exec_ctx,
+ grpc_compression_algorithm algorithm,
grpc_slice_buffer* input, grpc_slice_buffer* output) {
- if (!compress_inner(algorithm, input, output)) {
+ if (!compress_inner(exec_ctx, algorithm, input, output)) {
copy(input, output);
return 0;
}
return 1;
}
-int grpc_msg_decompress(grpc_compression_algorithm algorithm,
+int grpc_msg_decompress(grpc_exec_ctx* exec_ctx,
+ grpc_compression_algorithm algorithm,
grpc_slice_buffer* input, grpc_slice_buffer* output) {
switch (algorithm) {
case GRPC_COMPRESS_NONE:
return copy(input, output);
case GRPC_COMPRESS_DEFLATE:
- return zlib_decompress(input, output, 0);
+ return zlib_decompress(exec_ctx, input, output, 0);
case GRPC_COMPRESS_GZIP:
- return zlib_decompress(input, output, 1);
+ return zlib_decompress(exec_ctx, input, output, 1);
case GRPC_COMPRESS_ALGORITHMS_COUNT:
break;
}
diff --git a/src/core/lib/compression/message_compress.h b/src/core/lib/compression/message_compress.h
index 448d36a863..7bd3d98607 100644
--- a/src/core/lib/compression/message_compress.h
+++ b/src/core/lib/compression/message_compress.h
@@ -40,13 +40,15 @@
/* compress 'input' to 'output' using 'algorithm'.
On success, appends compressed slices to output and returns 1.
On failure, appends uncompressed slices to output and returns 0. */
-int grpc_msg_compress(grpc_compression_algorithm algorithm,
+int grpc_msg_compress(grpc_exec_ctx* exec_ctx,
+ grpc_compression_algorithm algorithm,
grpc_slice_buffer* input, grpc_slice_buffer* output);
/* decompress 'input' to 'output' using 'algorithm'.
On success, appends slices to output and returns 1.
On failure, output is unchanged, and returns 0. */
-int grpc_msg_decompress(grpc_compression_algorithm algorithm,
+int grpc_msg_decompress(grpc_exec_ctx* exec_ctx,
+ grpc_compression_algorithm algorithm,
grpc_slice_buffer* input, grpc_slice_buffer* output);
#endif /* GRPC_CORE_LIB_COMPRESSION_MESSAGE_COMPRESS_H */