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Move structures into (private) part of buffers.h so we can inspect them while testing
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@ -62,25 +62,8 @@ static int parse_socks_client(const uint8_t *data, size_t datalen,
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int state, char **reason,
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ssize_t *drain_out);
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#define DEBUG_CHUNK_ALLOC
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/* Chunk manipulation functions */
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/** A single chunk on a buffer or in a freelist. */
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typedef struct chunk_t {
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struct chunk_t *next; /**< The next chunk on the buffer or freelist. */
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size_t datalen; /**< The number of bytes stored in this chunk */
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size_t memlen; /**< The number of usable bytes of storage in <b>mem</b>. */
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#ifdef DEBUG_CHUNK_ALLOC
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size_t DBG_alloc;
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#endif
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char *data; /**< A pointer to the first byte of data stored in <b>mem</b>. */
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uint32_t inserted_time; /**< Timestamp in truncated ms since epoch
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* when this chunk was inserted. */
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char mem[FLEXIBLE_ARRAY_MEMBER]; /**< The actual memory used for storage in
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* this chunk. */
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} chunk_t;
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#define CHUNK_HEADER_LEN STRUCT_OFFSET(chunk_t, mem[0])
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/** Return the number of bytes needed to allocate a chunk to hold
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@ -407,19 +390,6 @@ buf_dump_freelist_sizes(int severity)
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#endif
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}
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/** Magic value for buf_t.magic, to catch pointer errors. */
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#define BUFFER_MAGIC 0xB0FFF312u
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/** A resizeable buffer, optimized for reading and writing. */
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struct buf_t {
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uint32_t magic; /**< Magic cookie for debugging: Must be set to
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* BUFFER_MAGIC. */
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size_t datalen; /**< How many bytes is this buffer holding right now? */
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size_t default_chunk_size; /**< Don't allocate any chunks smaller than
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* this for this buffer. */
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chunk_t *head; /**< First chunk in the list, or NULL for none. */
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chunk_t *tail; /**< Last chunk in the list, or NULL for none. */
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};
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/** Collapse data from the first N chunks from <b>buf</b> into buf->head,
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* growing it as necessary, until buf->head has the first <b>bytes</b> bytes
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* of data from the buffer, or until buf->head has all the data in <b>buf</b>.
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@ -2507,6 +2477,7 @@ write_to_buf_zlib(buf_t *buf, tor_zlib_state_t *state,
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char *next;
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size_t old_avail, avail;
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int over = 0;
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do {
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int need_new_chunk = 0;
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if (!buf->tail || ! CHUNK_REMAINING_CAPACITY(buf->tail)) {
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@ -106,6 +106,35 @@ void assert_buf_ok(buf_t *buf);
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STATIC int buf_find_string_offset(const buf_t *buf, const char *s, size_t n);
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STATIC void buf_pullup(buf_t *buf, size_t bytes, int nulterminate);
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void buf_get_first_chunk_data(const buf_t *buf, const char **cp, size_t *sz);
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#define DEBUG_CHUNK_ALLOC
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/** A single chunk on a buffer or in a freelist. */
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typedef struct chunk_t {
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struct chunk_t *next; /**< The next chunk on the buffer or freelist. */
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size_t datalen; /**< The number of bytes stored in this chunk */
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size_t memlen; /**< The number of usable bytes of storage in <b>mem</b>. */
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#ifdef DEBUG_CHUNK_ALLOC
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size_t DBG_alloc;
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#endif
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char *data; /**< A pointer to the first byte of data stored in <b>mem</b>. */
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uint32_t inserted_time; /**< Timestamp in truncated ms since epoch
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* when this chunk was inserted. */
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char mem[FLEXIBLE_ARRAY_MEMBER]; /**< The actual memory used for storage in
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* this chunk. */
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} chunk_t;
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/** Magic value for buf_t.magic, to catch pointer errors. */
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#define BUFFER_MAGIC 0xB0FFF312u
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/** A resizeable buffer, optimized for reading and writing. */
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struct buf_t {
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uint32_t magic; /**< Magic cookie for debugging: Must be set to
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* BUFFER_MAGIC. */
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size_t datalen; /**< How many bytes is this buffer holding right now? */
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size_t default_chunk_size; /**< Don't allocate any chunks smaller than
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* this for this buffer. */
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chunk_t *head; /**< First chunk in the list, or NULL for none. */
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chunk_t *tail; /**< Last chunk in the list, or NULL for none. */
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};
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#endif
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#endif
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