diff options
Diffstat (limited to 'src/or/buffers.c')
| -rw-r--r-- | src/or/buffers.c | 37 |
1 files changed, 4 insertions, 33 deletions
diff --git a/src/or/buffers.c b/src/or/buffers.c index fb186081c..033f86288 100644 --- a/src/or/buffers.c +++ b/src/or/buffers.c @@ -62,25 +62,8 @@ static int parse_socks_client(const uint8_t *data, size_t datalen, int state, char **reason, ssize_t *drain_out); -#define DEBUG_CHUNK_ALLOC - /* Chunk manipulation functions */ -/** A single chunk on a buffer or in a freelist. */ -typedef struct chunk_t { - struct chunk_t *next; /**< The next chunk on the buffer or freelist. */ - size_t datalen; /**< The number of bytes stored in this chunk */ - size_t memlen; /**< The number of usable bytes of storage in <b>mem</b>. */ -#ifdef DEBUG_CHUNK_ALLOC - size_t DBG_alloc; -#endif - char *data; /**< A pointer to the first byte of data stored in <b>mem</b>. */ - uint32_t inserted_time; /**< Timestamp in truncated ms since epoch - * when this chunk was inserted. */ - char mem[FLEXIBLE_ARRAY_MEMBER]; /**< The actual memory used for storage in - * this chunk. */ -} chunk_t; - #define CHUNK_HEADER_LEN STRUCT_OFFSET(chunk_t, mem[0]) /** Return the number of bytes needed to allocate a chunk to hold @@ -117,6 +100,9 @@ chunk_repack(chunk_t *chunk) chunk->data = &chunk->mem[0]; } +/** Keep track of total size of allocated chunks for consistency asserts */ +static size_t total_bytes_allocated_in_chunks = 0; + #if defined(ENABLE_BUF_FREELISTS) || defined(RUNNING_DOXYGEN) /** A freelist of chunks. */ typedef struct chunk_freelist_t { @@ -148,9 +134,6 @@ static chunk_freelist_t freelists[] = { * could help with? */ static uint64_t n_freelist_miss = 0; -/** DOCDOC */ -static size_t total_bytes_allocated_in_chunks = 0; - static void assert_freelist_ok(chunk_freelist_t *fl); /** Return the freelist to hold chunks of size <b>alloc</b>, or NULL if @@ -407,19 +390,6 @@ buf_dump_freelist_sizes(int severity) #endif } -/** Magic value for buf_t.magic, to catch pointer errors. */ -#define BUFFER_MAGIC 0xB0FFF312u -/** A resizeable buffer, optimized for reading and writing. */ -struct buf_t { - uint32_t magic; /**< Magic cookie for debugging: Must be set to - * BUFFER_MAGIC. */ - size_t datalen; /**< How many bytes is this buffer holding right now? */ - size_t default_chunk_size; /**< Don't allocate any chunks smaller than - * this for this buffer. */ - chunk_t *head; /**< First chunk in the list, or NULL for none. */ - chunk_t *tail; /**< Last chunk in the list, or NULL for none. */ -}; - /** Collapse data from the first N chunks from <b>buf</b> into buf->head, * growing it as necessary, until buf->head has the first <b>bytes</b> bytes * of data from the buffer, or until buf->head has all the data in <b>buf</b>. @@ -2507,6 +2477,7 @@ write_to_buf_zlib(buf_t *buf, tor_zlib_state_t *state, char *next; size_t old_avail, avail; int over = 0; + do { int need_new_chunk = 0; if (!buf->tail || ! CHUNK_REMAINING_CAPACITY(buf->tail)) { |