dovecot-2.0: struct mail_private now contains all kinds of stati...
dovecot at dovecot.org
dovecot at dovecot.org
Wed Apr 29 04:08:54 EEST 2009
details: http://hg.dovecot.org/dovecot-2.0/rev/be7413b0e0e0
changeset: 9163:be7413b0e0e0
user: Timo Sirainen <tss at iki.fi>
date: Tue Apr 28 21:05:00 2009 -0400
description:
struct mail_private now contains all kinds of statistics about file accesses.
diffstat:
12 files changed, 197 insertions(+), 16 deletions(-)
src/lib-storage/index/Makefile.am | 2
src/lib-storage/index/cydir/cydir-mail.c | 3
src/lib-storage/index/dbox/dbox-file.h | 2
src/lib-storage/index/dbox/dbox-mail.c | 3
src/lib-storage/index/index-mail-headers.c | 6 -
src/lib-storage/index/index-mail.c | 38 ++++++--
src/lib-storage/index/index-mail.h | 4
src/lib-storage/index/istream-mail-stats.c | 117 ++++++++++++++++++++++++++
src/lib-storage/index/istream-mail-stats.h | 7 +
src/lib-storage/index/maildir/maildir-mail.c | 13 ++
src/lib-storage/index/raw/raw-mail.c | 2
src/lib-storage/mail-storage-private.h | 16 +++
diffs (truncated from 454 to 300 lines):
diff -r 3727bfc568b9 -r be7413b0e0e0 src/lib-storage/index/Makefile.am
--- a/src/lib-storage/index/Makefile.am Tue Apr 28 17:21:14 2009 -0400
+++ b/src/lib-storage/index/Makefile.am Tue Apr 28 21:05:00 2009 -0400
@@ -10,6 +10,7 @@ AM_CPPFLAGS = \
-I$(top_srcdir)/src/lib-storage
libstorage_index_la_SOURCES = \
+ istream-mail-stats.c \
index-fetch.c \
index-mail.c \
index-mail-headers.c \
@@ -32,6 +33,7 @@ libstorage_index_la_DEPENDENCIES = @LINK
libstorage_index_la_DEPENDENCIES = @LINKED_STORAGE_LIBS@
headers = \
+ istream-mail-stats.h \
index-mail.h \
index-search-result.h \
index-sort.h \
diff -r 3727bfc568b9 -r be7413b0e0e0 src/lib-storage/index/cydir/cydir-mail.c
--- a/src/lib-storage/index/cydir/cydir-mail.c Tue Apr 28 17:21:14 2009 -0400
+++ b/src/lib-storage/index/cydir/cydir-mail.c Tue Apr 28 21:05:00 2009 -0400
@@ -20,11 +20,13 @@ static const char *cydir_mail_get_path(s
static int cydir_mail_stat(struct mail *mail, struct stat *st_r)
{
+ struct mail_private *p = (struct mail_private *)mail;
const char *path;
if (mail->lookup_abort == MAIL_LOOKUP_ABORT_NOT_IN_CACHE)
return mail_set_aborted(mail);
+ p->stats_dentry_lookup_count++;
path = cydir_mail_get_path(mail);
if (stat(path, st_r) < 0) {
if (errno == ENOENT)
@@ -98,6 +100,7 @@ cydir_mail_get_stream(struct mail *_mail
int fd;
if (mail->data.stream == NULL) {
+ mail->mail.stats_dentry_lookup_count++;
path = cydir_mail_get_path(_mail);
fd = open(path, O_RDONLY);
if (fd == -1) {
diff -r 3727bfc568b9 -r be7413b0e0e0 src/lib-storage/index/dbox/dbox-file.h
--- a/src/lib-storage/index/dbox/dbox-file.h Tue Apr 28 17:21:14 2009 -0400
+++ b/src/lib-storage/index/dbox/dbox-file.h Tue Apr 28 21:05:00 2009 -0400
@@ -119,6 +119,8 @@ struct dbox_file {
unsigned int corrupted:1;
};
+#define dbox_file_is_open(file) ((file)->input != NULL)
+
struct dbox_file *
dbox_file_init_single(struct dbox_mailbox *mbox, uint32_t uid);
struct dbox_file *
diff -r 3727bfc568b9 -r be7413b0e0e0 src/lib-storage/index/dbox/dbox-mail.c
--- a/src/lib-storage/index/dbox/dbox-mail.c Tue Apr 28 17:21:14 2009 -0400
+++ b/src/lib-storage/index/dbox/dbox-mail.c Tue Apr 28 21:05:00 2009 -0400
@@ -158,6 +158,8 @@ static int dbox_mail_open(struct dbox_ma
return -1;
}
+ if (!dbox_file_is_open(mail->open_file))
+ mail->imail.mail.stats_dentry_lookup_count++;
if (dbox_file_open(mail->open_file, &deleted) <= 0)
return -1;
if (deleted) {
@@ -235,6 +237,7 @@ static int dbox_mail_get_save_date(struc
if (data->save_date == 0) {
/* missing / corrupted save time - use the file's ctime */
i_assert(file->fd != -1);
+ mail->imail.mail.stats_attr_lookup_count++;
if (fstat(file->fd, &st) < 0) {
mail_storage_set_critical(_mail->box->storage,
"fstat(%s) failed: %m", file->current_path);
diff -r 3727bfc568b9 -r be7413b0e0e0 src/lib-storage/index/index-mail-headers.c
--- a/src/lib-storage/index/index-mail-headers.c Tue Apr 28 17:21:14 2009 -0400
+++ b/src/lib-storage/index/index-mail-headers.c Tue Apr 28 21:05:00 2009 -0400
@@ -471,8 +471,8 @@ int index_mail_headers_get_envelope(stru
string_t *str;
str = str_new(mail->data_pool, 256);
- if (mail_cache_lookup_field(mail->trans->cache_view, str,
- mail->data.seq, cache_field_envelope) > 0) {
+ if (index_mail_cache_lookup_field(mail, str,
+ cache_field_envelope) > 0) {
mail->data.envelope = str_c(str);
return 0;
}
@@ -637,6 +637,7 @@ index_mail_get_raw_headers(struct index_
*value_r = index_mail_get_parsed_header(mail, field_idx);
return 0;
}
+ mail->mail.stats_cache_hit_count++;
data = buffer_get_modifiable_data(dest, &len);
if (len == 0) {
@@ -819,6 +820,7 @@ int index_mail_get_header_stream(struct
if (mail_cache_lookup_headers(mail->trans->cache_view, dest,
mail->data.seq, headers->idx,
headers->count) > 0) {
+ mail->mail.stats_cache_hit_count++;
if (mail->data.filter_stream != NULL)
i_stream_destroy(&mail->data.filter_stream);
mail->data.filter_stream =
diff -r 3727bfc568b9 -r be7413b0e0e0 src/lib-storage/index/index-mail.c
--- a/src/lib-storage/index/index-mail.c Tue Apr 28 17:21:14 2009 -0400
+++ b/src/lib-storage/index/index-mail.c Tue Apr 28 21:05:00 2009 -0400
@@ -15,6 +15,7 @@
#include "mail-cache.h"
#include "mail-index-modseq.h"
#include "index-storage.h"
+#include "istream-mail-stats.h"
#include "index-mail.h"
struct mail_cache_field global_cache_fields[MAIL_INDEX_CACHE_FIELD_COUNT] = {
@@ -40,6 +41,18 @@ static int index_mail_parse_body(struct
static int index_mail_parse_body(struct index_mail *mail,
enum index_cache_field field);
+int index_mail_cache_lookup_field(struct index_mail *mail, buffer_t *buf,
+ unsigned int field_idx)
+{
+ int ret;
+
+ ret = mail_cache_lookup_field(mail->trans->cache_view, buf,
+ mail->data.seq, field_idx);
+ if (ret > 0)
+ mail->mail.stats_cache_hit_count++;
+ return ret;
+}
+
static struct message_part *get_unserialized_parts(struct index_mail *mail)
{
unsigned int field_idx =
@@ -50,8 +63,7 @@ static struct message_part *get_unserial
int ret;
part_buf = buffer_create_dynamic(pool_datastack_create(), 128);
- ret = mail_cache_lookup_field(mail->trans->cache_view, part_buf,
- mail->data.seq, field_idx);
+ ret = index_mail_cache_lookup_field(mail, part_buf, field_idx);
if (ret <= 0)
return NULL;
@@ -100,8 +112,7 @@ static bool index_mail_get_fixed_field(s
buf = buffer_create_data(pool_datastack_create(),
data, data_size);
- if (mail_cache_lookup_field(mail->trans->cache_view, buf,
- mail->data.seq, field_idx) <= 0)
+ if (index_mail_cache_lookup_field(mail, buf, field_idx) <= 0)
ret = FALSE;
else {
i_assert(buf->used == data_size);
@@ -803,7 +814,16 @@ int index_mail_init_stream(struct index_
struct istream **stream_r)
{
struct index_mail_data *data = &mail->data;
+ struct istream *input;
int ret;
+
+ if (!data->initialized_wrapper_stream && mail->mail.stats_track) {
+ input = i_stream_create_mail_stats_counter(&mail->mail,
+ data->stream);
+ i_stream_unref(&data->stream);
+ data->stream = input;
+ data->initialized_wrapper_stream = TRUE;
+ }
i_stream_set_destroy_callback(data->stream,
index_mail_stream_destroy_callback, mail);
@@ -954,11 +974,10 @@ int index_mail_get_special(struct mail *
get_cached_parts(mail)) {
index_mail_get_plain_bodystructure(mail, str, FALSE);
data->body = str_c(str);
- } else if (mail_cache_lookup_field(mail->trans->cache_view, str,
- mail->data.seq, body_cache_field) > 0)
+ } else if (index_mail_cache_lookup_field(mail, str,
+ body_cache_field) > 0)
data->body = str_c(str);
- else if (mail_cache_lookup_field(mail->trans->cache_view, str,
- mail->data.seq,
+ else if (index_mail_cache_lookup_field(mail, str,
bodystructure_cache_field) > 0) {
data->bodystructure =
p_strdup(mail->data_pool, str_c(str));
@@ -999,8 +1018,7 @@ int index_mail_get_special(struct mail *
get_cached_parts(mail)) {
index_mail_get_plain_bodystructure(mail, str, TRUE);
data->bodystructure = str_c(str);
- } else if (mail_cache_lookup_field(mail->trans->cache_view, str,
- mail->data.seq,
+ } else if (index_mail_cache_lookup_field(mail, str,
bodystructure_cache_field) > 0) {
data->bodystructure = str_c(str);
} else {
diff -r 3727bfc568b9 -r be7413b0e0e0 src/lib-storage/index/index-mail.h
--- a/src/lib-storage/index/index-mail.h Tue Apr 28 17:21:14 2009 -0400
+++ b/src/lib-storage/index/index-mail.h Tue Apr 28 21:05:00 2009 -0400
@@ -109,6 +109,7 @@ struct index_mail_data {
unsigned int no_caching:1;
unsigned int forced_no_caching:1;
unsigned int destroying_stream:1;
+ unsigned int initialized_wrapper_stream:1;
};
struct index_mail {
@@ -217,4 +218,7 @@ void index_mail_cache_parse_deinit(struc
void index_mail_cache_parse_deinit(struct mail *mail, time_t received_date,
bool success);
+int index_mail_cache_lookup_field(struct index_mail *mail, buffer_t *buf,
+ unsigned int field_idx);
+
#endif
diff -r 3727bfc568b9 -r be7413b0e0e0 src/lib-storage/index/istream-mail-stats.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/lib-storage/index/istream-mail-stats.c Tue Apr 28 21:05:00 2009 -0400
@@ -0,0 +1,117 @@
+/* Copyright (c) 2009 Dovecot authors, see the included COPYING file */
+
+#include "lib.h"
+#include "mail-storage-private.h"
+#include "istream-internal.h"
+#include "istream-mail-stats.h"
+
+struct mail_stats_istream {
+ struct istream_private istream;
+
+ struct mail_private *mail;
+ unsigned int files_read_increased:1;
+};
+
+static void i_stream_mail_stats_destroy(struct iostream_private *stream)
+{
+ struct mail_stats_istream *mstream =
+ (struct mail_stats_istream *)stream;
+
+ i_stream_unref(&mstream->istream.parent);
+}
+
+static void
+i_stream_mail_stats_set_max_buffer_size(struct iostream_private *stream,
+ size_t max_size)
+{
+ struct mail_stats_istream *mstream =
+ (struct mail_stats_istream *)stream;
+
+ mstream->istream.max_buffer_size = max_size;
+ i_stream_set_max_buffer_size(mstream->istream.parent, max_size);
+}
+
+static ssize_t
+i_stream_mail_stats_read_mail_stats(struct istream_private *stream)
+{
+ struct mail_stats_istream *mstream =
+ (struct mail_stats_istream *)stream;
+ size_t pos;
+ ssize_t ret;
+
+ if (stream->parent->v_offset !=
+ stream->parent_start_offset + stream->istream.v_offset) {
+ i_stream_seek(stream->parent, stream->parent_start_offset +
+ stream->istream.v_offset);
+ }
+
+ stream->buffer = i_stream_get_data(stream->parent, &pos);
+ if (pos <= stream->pos) {
+ if ((ret = i_stream_read(stream->parent)) == -2)
+ return -2;
+
+ if (ret > 0) {
+ mstream->mail->stats_files_read_bytes+= ret;
+ if (!mstream->files_read_increased) {
+ mstream->files_read_increased = TRUE;
+ mstream->mail->stats_files_read_count++;
+ }
+ }
+
+ stream->istream.stream_errno = stream->parent->stream_errno;
+ stream->istream.eof = stream->parent->eof;
+ stream->buffer = i_stream_get_data(stream->parent, &pos);
+ } else {
+ ret = 0;
+ }
+
+ stream->pos -= stream->skip;
+ stream->skip = 0;
+
+ ret = pos > stream->pos ? (ssize_t)(pos - stream->pos) :
+ (ret == 0 ? 0 : -1);
+ stream->pos = pos;
+ i_assert(ret != -1 || stream->istream.eof ||
+ stream->istream.stream_errno != 0);
+ return ret;
+}
+
+static void
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