summaryrefslogtreecommitdiff
path: root/examples/redis-unstable/deps/jemalloc/src/buf_writer.c
diff options
context:
space:
mode:
Diffstat (limited to 'examples/redis-unstable/deps/jemalloc/src/buf_writer.c')
-rw-r--r--examples/redis-unstable/deps/jemalloc/src/buf_writer.c144
1 files changed, 0 insertions, 144 deletions
diff --git a/examples/redis-unstable/deps/jemalloc/src/buf_writer.c b/examples/redis-unstable/deps/jemalloc/src/buf_writer.c
deleted file mode 100644
index 7c6f794..0000000
--- a/examples/redis-unstable/deps/jemalloc/src/buf_writer.c
+++ /dev/null
@@ -1,144 +0,0 @@
-#include "jemalloc/internal/jemalloc_preamble.h"
-#include "jemalloc/internal/jemalloc_internal_includes.h"
-
-#include "jemalloc/internal/buf_writer.h"
-#include "jemalloc/internal/malloc_io.h"
-
-static void *
-buf_writer_allocate_internal_buf(tsdn_t *tsdn, size_t buf_len) {
-#ifdef JEMALLOC_JET
- if (buf_len > SC_LARGE_MAXCLASS) {
- return NULL;
- }
-#else
- assert(buf_len <= SC_LARGE_MAXCLASS);
-#endif
- return iallocztm(tsdn, buf_len, sz_size2index(buf_len), false, NULL,
- true, arena_get(tsdn, 0, false), true);
-}
-
-static void
-buf_writer_free_internal_buf(tsdn_t *tsdn, void *buf) {
- if (buf != NULL) {
- idalloctm(tsdn, buf, NULL, NULL, true, true);
- }
-}
-
-static void
-buf_writer_assert(buf_writer_t *buf_writer) {
- assert(buf_writer != NULL);
- assert(buf_writer->write_cb != NULL);
- if (buf_writer->buf != NULL) {
- assert(buf_writer->buf_size > 0);
- } else {
- assert(buf_writer->buf_size == 0);
- assert(buf_writer->internal_buf);
- }
- assert(buf_writer->buf_end <= buf_writer->buf_size);
-}
-
-bool
-buf_writer_init(tsdn_t *tsdn, buf_writer_t *buf_writer, write_cb_t *write_cb,
- void *cbopaque, char *buf, size_t buf_len) {
- if (write_cb != NULL) {
- buf_writer->write_cb = write_cb;
- } else {
- buf_writer->write_cb = je_malloc_message != NULL ?
- je_malloc_message : wrtmessage;
- }
- buf_writer->cbopaque = cbopaque;
- assert(buf_len >= 2);
- if (buf != NULL) {
- buf_writer->buf = buf;
- buf_writer->internal_buf = false;
- } else {
- buf_writer->buf = buf_writer_allocate_internal_buf(tsdn,
- buf_len);
- buf_writer->internal_buf = true;
- }
- if (buf_writer->buf != NULL) {
- buf_writer->buf_size = buf_len - 1; /* Allowing for '\0'. */
- } else {
- buf_writer->buf_size = 0;
- }
- buf_writer->buf_end = 0;
- buf_writer_assert(buf_writer);
- return buf_writer->buf == NULL;
-}
-
-void
-buf_writer_flush(buf_writer_t *buf_writer) {
- buf_writer_assert(buf_writer);
- if (buf_writer->buf == NULL) {
- return;
- }
- buf_writer->buf[buf_writer->buf_end] = '\0';
- buf_writer->write_cb(buf_writer->cbopaque, buf_writer->buf);
- buf_writer->buf_end = 0;
- buf_writer_assert(buf_writer);
-}
-
-void
-buf_writer_cb(void *buf_writer_arg, const char *s) {
- buf_writer_t *buf_writer = (buf_writer_t *)buf_writer_arg;
- buf_writer_assert(buf_writer);
- if (buf_writer->buf == NULL) {
- buf_writer->write_cb(buf_writer->cbopaque, s);
- return;
- }
- size_t i, slen, n;
- for (i = 0, slen = strlen(s); i < slen; i += n) {
- if (buf_writer->buf_end == buf_writer->buf_size) {
- buf_writer_flush(buf_writer);
- }
- size_t s_remain = slen - i;
- size_t buf_remain = buf_writer->buf_size - buf_writer->buf_end;
- n = s_remain < buf_remain ? s_remain : buf_remain;
- memcpy(buf_writer->buf + buf_writer->buf_end, s + i, n);
- buf_writer->buf_end += n;
- buf_writer_assert(buf_writer);
- }
- assert(i == slen);
-}
-
-void
-buf_writer_terminate(tsdn_t *tsdn, buf_writer_t *buf_writer) {
- buf_writer_assert(buf_writer);
- buf_writer_flush(buf_writer);
- if (buf_writer->internal_buf) {
- buf_writer_free_internal_buf(tsdn, buf_writer->buf);
- }
-}
-
-void
-buf_writer_pipe(buf_writer_t *buf_writer, read_cb_t *read_cb,
- void *read_cbopaque) {
- /*
- * A tiny local buffer in case the buffered writer failed to allocate
- * at init.
- */
- static char backup_buf[16];
- static buf_writer_t backup_buf_writer;
-
- buf_writer_assert(buf_writer);
- assert(read_cb != NULL);
- if (buf_writer->buf == NULL) {
- buf_writer_init(TSDN_NULL, &backup_buf_writer,
- buf_writer->write_cb, buf_writer->cbopaque, backup_buf,
- sizeof(backup_buf));
- buf_writer = &backup_buf_writer;
- }
- assert(buf_writer->buf != NULL);
- ssize_t nread = 0;
- do {
- buf_writer->buf_end += nread;
- buf_writer_assert(buf_writer);
- if (buf_writer->buf_end == buf_writer->buf_size) {
- buf_writer_flush(buf_writer);
- }
- nread = read_cb(read_cbopaque,
- buf_writer->buf + buf_writer->buf_end,
- buf_writer->buf_size - buf_writer->buf_end);
- } while (nread > 0);
- buf_writer_flush(buf_writer);
-}