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authorPierre Habouzit <madcoder@debian.org>2007-09-17 11:48:17 (GMT)
committerJunio C Hamano <gitster@pobox.com>2007-09-18 07:55:15 (GMT)
commiteec813cfc6409a1b72399acf7ac08283faad7b8f (patch)
tree3a489aebd8d559a89359417abbaac3cec1008baf /fast-import.c
parente6c019d0b0140fae1cdfd661746cbe319b6c3670 (diff)
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fast-import was using dbuf's, replace them with strbuf's.
Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'fast-import.c')
-rw-r--r--fast-import.c177
1 files changed, 68 insertions, 109 deletions
diff --git a/fast-import.c b/fast-import.c
index da04566..e456eab 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -250,12 +250,6 @@ struct tag
unsigned char sha1[20];
};
-struct dbuf
-{
- void *buffer;
- size_t capacity;
-};
-
struct hash_list
{
struct hash_list *next;
@@ -323,8 +317,8 @@ static unsigned int tree_entry_alloc = 1000;
static void *avail_tree_entry;
static unsigned int avail_tree_table_sz = 100;
static struct avail_tree_content **avail_tree_table;
-static struct dbuf old_tree;
-static struct dbuf new_tree;
+static struct strbuf old_tree = STRBUF_INIT;
+static struct strbuf new_tree = STRBUF_INIT;
/* Branch data */
static unsigned long max_active_branches = 5;
@@ -346,7 +340,7 @@ static struct recent_command *cmd_tail = &cmd_hist;
static struct recent_command *rc_free;
static unsigned int cmd_save = 100;
static uintmax_t next_mark;
-static struct dbuf new_data;
+static struct strbuf new_data = STRBUF_INIT;
static void write_branch_report(FILE *rpt, struct branch *b)
{
@@ -566,17 +560,6 @@ static char *pool_strdup(const char *s)
return r;
}
-static void size_dbuf(struct dbuf *b, size_t maxlen)
-{
- if (b->buffer) {
- if (b->capacity >= maxlen)
- return;
- free(b->buffer);
- }
- b->capacity = ((maxlen / 1024) + 1) * 1024;
- b->buffer = xmalloc(b->capacity);
-}
-
static void insert_mark(uintmax_t idnum, struct object_entry *oe)
{
struct mark_set *s = marks;
@@ -1005,8 +988,7 @@ static size_t encode_header(
static int store_object(
enum object_type type,
- void *dat,
- size_t datlen,
+ struct strbuf *dat,
struct last_object *last,
unsigned char *sha1out,
uintmax_t mark)
@@ -1020,10 +1002,10 @@ static int store_object(
z_stream s;
hdrlen = sprintf((char*)hdr,"%s %lu", typename(type),
- (unsigned long)datlen) + 1;
+ (unsigned long)dat->len) + 1;
SHA1_Init(&c);
SHA1_Update(&c, hdr, hdrlen);
- SHA1_Update(&c, dat, datlen);
+ SHA1_Update(&c, dat->buf, dat->len);
SHA1_Final(sha1, &c);
if (sha1out)
hashcpy(sha1out, sha1);
@@ -1044,9 +1026,9 @@ static int store_object(
if (last && last->data && last->depth < max_depth) {
delta = diff_delta(last->data, last->len,
- dat, datlen,
+ dat->buf, dat->len,
&deltalen, 0);
- if (delta && deltalen >= datlen) {
+ if (delta && deltalen >= dat->len) {
free(delta);
delta = NULL;
}
@@ -1059,8 +1041,8 @@ static int store_object(
s.next_in = delta;
s.avail_in = deltalen;
} else {
- s.next_in = dat;
- s.avail_in = datlen;
+ s.next_in = (void *)dat->buf;
+ s.avail_in = dat->len;
}
s.avail_out = deflateBound(&s, s.avail_in);
s.next_out = out = xmalloc(s.avail_out);
@@ -1083,8 +1065,8 @@ static int store_object(
memset(&s, 0, sizeof(s));
deflateInit(&s, zlib_compression_level);
- s.next_in = dat;
- s.avail_in = datlen;
+ s.next_in = (void *)dat->buf;
+ s.avail_in = dat->len;
s.avail_out = deflateBound(&s, s.avail_in);
s.next_out = out = xrealloc(out, s.avail_out);
while (deflate(&s, Z_FINISH) == Z_OK)
@@ -1118,7 +1100,7 @@ static int store_object(
} else {
if (last)
last->depth = 0;
- hdrlen = encode_header(type, datlen, hdr);
+ hdrlen = encode_header(type, dat->len, hdr);
write_or_die(pack_data->pack_fd, hdr, hdrlen);
pack_size += hdrlen;
}
@@ -1131,9 +1113,9 @@ static int store_object(
if (last) {
if (!last->no_free)
free(last->data);
- last->data = dat;
last->offset = e->offset;
- last->len = datlen;
+ last->data = dat->buf;
+ last->len = dat->len;
}
return 0;
}
@@ -1229,14 +1211,10 @@ static int tecmp1 (const void *_a, const void *_b)
b->name->str_dat, b->name->str_len, b->versions[1].mode);
}
-static void mktree(struct tree_content *t,
- int v,
- unsigned long *szp,
- struct dbuf *b)
+static void mktree(struct tree_content *t, int v, struct strbuf *b)
{
size_t maxlen = 0;
unsigned int i;
- char *c;
if (!v)
qsort(t->entries,t->entry_count,sizeof(t->entries[0]),tecmp0);
@@ -1248,27 +1226,22 @@ static void mktree(struct tree_content *t,
maxlen += t->entries[i]->name->str_len + 34;
}
- size_dbuf(b, maxlen);
- c = b->buffer;
+ strbuf_reset(b);
+ strbuf_grow(b, maxlen);
for (i = 0; i < t->entry_count; i++) {
struct tree_entry *e = t->entries[i];
if (!e->versions[v].mode)
continue;
- c += sprintf(c, "%o", (unsigned int)e->versions[v].mode);
- *c++ = ' ';
- strcpy(c, e->name->str_dat);
- c += e->name->str_len + 1;
- hashcpy((unsigned char*)c, e->versions[v].sha1);
- c += 20;
+ strbuf_addf(b, "%o %s%c", (unsigned int)e->versions[v].mode,
+ e->name->str_dat, '\0');
+ strbuf_add(b, e->versions[v].sha1, 20);
}
- *szp = c - (char*)b->buffer;
}
static void store_tree(struct tree_entry *root)
{
struct tree_content *t = root->tree;
unsigned int i, j, del;
- unsigned long new_len;
struct last_object lo;
struct object_entry *le;
@@ -1288,16 +1261,16 @@ static void store_tree(struct tree_entry *root)
lo.depth = 0;
lo.no_free = 0;
} else {
- mktree(t, 0, &lo.len, &old_tree);
- lo.data = old_tree.buffer;
+ mktree(t, 0, &old_tree);
+ lo.len = old_tree.len;
+ lo.data = old_tree.buf;
lo.offset = le->offset;
lo.depth = t->delta_depth;
lo.no_free = 1;
}
- mktree(t, 1, &new_len, &new_tree);
- store_object(OBJ_TREE, new_tree.buffer, new_len,
- &lo, root->versions[1].sha1, 0);
+ mktree(t, 1, &new_tree);
+ store_object(OBJ_TREE, &new_tree, &lo, root->versions[1].sha1, 0);
t->delta_depth = lo.depth;
for (i = 0, j = 0, del = 0; i < t->entry_count; i++) {
@@ -1642,11 +1615,10 @@ static void cmd_mark(void)
next_mark = 0;
}
-static void *cmd_data (size_t *size)
+static void cmd_data(struct strbuf *sb)
{
- struct strbuf buffer;
+ strbuf_reset(sb);
- strbuf_init(&buffer, 0);
if (prefixcmp(command_buf.buf, "data "))
die("Expected 'data n' command, found: %s", command_buf.buf);
@@ -1660,8 +1632,8 @@ static void *cmd_data (size_t *size)
if (term_len == command_buf.len
&& !strcmp(term, command_buf.buf))
break;
- strbuf_addbuf(&buffer, &command_buf);
- strbuf_addch(&buffer, '\n');
+ strbuf_addbuf(sb, &command_buf);
+ strbuf_addch(sb, '\n');
}
free(term);
}
@@ -1671,7 +1643,7 @@ static void *cmd_data (size_t *size)
length = strtoul(command_buf.buf + 5, NULL, 10);
while (n < length) {
- size_t s = strbuf_fread(&buffer, length - n, stdin);
+ size_t s = strbuf_fread(sb, length - n, stdin);
if (!s && feof(stdin))
die("EOF in data (%lu bytes remaining)",
(unsigned long)(length - n));
@@ -1680,8 +1652,6 @@ static void *cmd_data (size_t *size)
}
skip_optional_lf();
- *size = buffer.len;
- return strbuf_detach(&buffer);
}
static int validate_raw_date(const char *src, char *result, int maxlen)
@@ -1744,15 +1714,14 @@ static char *parse_ident(const char *buf)
static void cmd_new_blob(void)
{
- size_t l;
- void *d;
+ struct strbuf buf;
read_next_command();
cmd_mark();
- d = cmd_data(&l);
-
- if (store_object(OBJ_BLOB, d, l, &last_blob, NULL, next_mark))
- free(d);
+ strbuf_init(&buf, 0);
+ cmd_data(&buf);
+ if (store_object(OBJ_BLOB, &buf, &last_blob, NULL, next_mark))
+ strbuf_release(&buf);
}
static void unload_one_branch(void)
@@ -1848,14 +1817,15 @@ static void file_change_m(struct branch *b)
}
if (inline_data) {
- size_t l;
- void *d;
+ struct strbuf buf;
+
if (!p_uq)
p = p_uq = xstrdup(p);
read_next_command();
- d = cmd_data(&l);
- if (store_object(OBJ_BLOB, d, l, &last_blob, sha1, 0))
- free(d);
+ strbuf_init(&buf, 0);
+ cmd_data(&buf);
+ if (store_object(OBJ_BLOB, &buf, &last_blob, sha1, 0))
+ strbuf_release(&buf);
} else if (oe) {
if (oe->type != OBJ_BLOB)
die("Not a blob (actually a %s): %s",
@@ -2062,9 +2032,8 @@ static struct hash_list *cmd_merge(unsigned int *count)
static void cmd_new_commit(void)
{
+ static struct strbuf msg = STRBUF_INIT;
struct branch *b;
- void *msg;
- size_t msglen;
char *sp;
char *author = NULL;
char *committer = NULL;
@@ -2089,7 +2058,7 @@ static void cmd_new_commit(void)
}
if (!committer)
die("Expected committer but didn't get one");
- msg = cmd_data(&msglen);
+ cmd_data(&msg);
read_next_command();
cmd_from(b);
merge_list = cmd_merge(&merge_count);
@@ -2124,46 +2093,39 @@ static void cmd_new_commit(void)
store_tree(&b->branch_tree);
hashcpy(b->branch_tree.versions[0].sha1,
b->branch_tree.versions[1].sha1);
- size_dbuf(&new_data, 114 + msglen
- + merge_count * 49
- + (author
- ? strlen(author) + strlen(committer)
- : 2 * strlen(committer)));
- sp = new_data.buffer;
- sp += sprintf(sp, "tree %s\n",
+
+ strbuf_reset(&new_data);
+ strbuf_addf(&new_data, "tree %s\n",
sha1_to_hex(b->branch_tree.versions[1].sha1));
if (!is_null_sha1(b->sha1))
- sp += sprintf(sp, "parent %s\n", sha1_to_hex(b->sha1));
+ strbuf_addf(&new_data, "parent %s\n", sha1_to_hex(b->sha1));
while (merge_list) {
struct hash_list *next = merge_list->next;
- sp += sprintf(sp, "parent %s\n", sha1_to_hex(merge_list->sha1));
+ strbuf_addf(&new_data, "parent %s\n", sha1_to_hex(merge_list->sha1));
free(merge_list);
merge_list = next;
}
- sp += sprintf(sp, "author %s\n", author ? author : committer);
- sp += sprintf(sp, "committer %s\n", committer);
- *sp++ = '\n';
- memcpy(sp, msg, msglen);
- sp += msglen;
+ strbuf_addf(&new_data,
+ "author %s\n"
+ "committer %s\n"
+ "\n",
+ author ? author : committer, committer);
+ strbuf_addbuf(&new_data, &msg);
free(author);
free(committer);
- free(msg);
- if (!store_object(OBJ_COMMIT,
- new_data.buffer, sp - (char*)new_data.buffer,
- NULL, b->sha1, next_mark))
+ if (!store_object(OBJ_COMMIT, &new_data, NULL, b->sha1, next_mark))
b->pack_id = pack_id;
b->last_commit = object_count_by_type[OBJ_COMMIT];
}
static void cmd_new_tag(void)
{
+ static struct strbuf msg = STRBUF_INIT;
char *sp;
const char *from;
char *tagger;
struct branch *s;
- void *msg;
- size_t msglen;
struct tag *t;
uintmax_t from_mark = 0;
unsigned char sha1[20];
@@ -2214,24 +2176,21 @@ static void cmd_new_tag(void)
/* tag payload/message */
read_next_command();
- msg = cmd_data(&msglen);
+ cmd_data(&msg);
/* build the tag object */
- size_dbuf(&new_data, 67+strlen(t->name)+strlen(tagger)+msglen);
- sp = new_data.buffer;
- sp += sprintf(sp, "object %s\n", sha1_to_hex(sha1));
- sp += sprintf(sp, "type %s\n", commit_type);
- sp += sprintf(sp, "tag %s\n", t->name);
- sp += sprintf(sp, "tagger %s\n", tagger);
- *sp++ = '\n';
- memcpy(sp, msg, msglen);
- sp += msglen;
+ strbuf_reset(&new_data);
+ strbuf_addf(&new_data,
+ "object %s\n"
+ "type %s\n"
+ "tag %s\n"
+ "tagger %s\n"
+ "\n",
+ sha1_to_hex(sha1), commit_type, t->name, tagger);
+ strbuf_addbuf(&new_data, &msg);
free(tagger);
- free(msg);
- if (store_object(OBJ_TAG, new_data.buffer,
- sp - (char*)new_data.buffer,
- NULL, t->sha1, 0))
+ if (store_object(OBJ_TAG, &new_data, NULL, t->sha1, 0))
t->pack_id = MAX_PACK_ID;
else
t->pack_id = pack_id;