From: Ben Peart <peartben@gmail.com>
To: git@vger.kernel.org
Cc: gitster@pobox.com, benpeart@microsoft.com,
christian.couder@gmail.com, larsxschneider@gmail.com,
peff@peff.net
Subject: [PATCH v7 06/10] convert: Separate generic structures and variables from the filter specific ones
Date: Fri, 5 May 2017 11:27:58 -0400 [thread overview]
Message-ID: <20170505152802.6724-7-benpeart@microsoft.com> (raw)
In-Reply-To: <20170505152802.6724-1-benpeart@microsoft.com>
To enable future reuse of the filter.<driver>.process infrastructure,
split the cmd2process structure into two separate parts.
subprocess_entry will now contain the generic data required to manage
the creation and tracking of the child process in a hashmap.
cmd2process is a filter protocol specific structure that is used to
track the negotiated capabilities of the filter.
Signed-off-by: Ben Peart <benpeart@microsoft.com>
---
convert.c | 35 ++++++++++++++++++++---------------
1 file changed, 20 insertions(+), 15 deletions(-)
diff --git a/convert.c b/convert.c
index 4e1d018577..5876218347 100644
--- a/convert.c
+++ b/convert.c
@@ -496,26 +496,31 @@ static int apply_single_file_filter(const char *path, const char *src, size_t le
#define CAP_CLEAN (1u<<0)
#define CAP_SMUDGE (1u<<1)
-struct cmd2process {
+struct subprocess_entry {
struct hashmap_entry ent; /* must be the first member! */
- unsigned int supported_capabilities;
const char *cmd;
struct child_process process;
};
+struct cmd2process {
+ struct subprocess_entry subprocess; /* must be the first member! */
+ unsigned int supported_capabilities;
+};
+
static int cmd_process_map_initialized;
static struct hashmap cmd_process_map;
-static int cmd2process_cmp(const struct cmd2process *e1,
- const struct cmd2process *e2,
+static int cmd2process_cmp(const struct subprocess_entry *e1,
+ const struct subprocess_entry *e2,
const void *unused)
{
return strcmp(e1->cmd, e2->cmd);
}
-static struct cmd2process *find_multi_file_filter_entry(struct hashmap *hashmap, const char *cmd)
+static struct subprocess_entry *find_multi_file_filter_entry(struct hashmap *hashmap, const char *cmd)
{
- struct cmd2process key;
+ struct subprocess_entry key;
+
hashmap_entry_init(&key, strhash(cmd));
key.cmd = cmd;
return hashmap_get(hashmap, &key, NULL);
@@ -541,7 +546,7 @@ static void read_multi_file_filter_status(int fd, struct strbuf *status)
}
}
-static void kill_multi_file_filter(struct hashmap *hashmap, struct cmd2process *entry)
+static void kill_multi_file_filter(struct hashmap *hashmap, struct subprocess_entry *entry)
{
if (!entry)
return;
@@ -571,8 +576,8 @@ static int start_multi_file_filter_fn(struct cmd2process *entry)
struct string_list cap_list = STRING_LIST_INIT_NODUP;
char *cap_buf;
const char *cap_name;
- struct child_process *process = &entry->process;
- const char *cmd = entry->cmd;
+ struct child_process *process = &entry->subprocess.process;
+ const char *cmd = entry->subprocess.cmd;
sigchain_push(SIGPIPE, SIG_IGN);
@@ -632,9 +637,9 @@ static struct cmd2process *start_multi_file_filter(struct hashmap *hashmap, cons
const char *argv[] = { cmd, NULL };
entry = xmalloc(sizeof(*entry));
- entry->cmd = cmd;
+ entry->subprocess.cmd = cmd;
entry->supported_capabilities = 0;
- process = &entry->process;
+ process = &entry->subprocess.process;
child_process_init(process);
process->argv = argv;
@@ -654,7 +659,7 @@ static struct cmd2process *start_multi_file_filter(struct hashmap *hashmap, cons
err = start_multi_file_filter_fn(entry);
if (err) {
error("initialization for external filter '%s' failed", cmd);
- kill_multi_file_filter(hashmap, entry);
+ kill_multi_file_filter(hashmap, &entry->subprocess);
return NULL;
}
@@ -678,7 +683,7 @@ static int apply_multi_file_filter(const char *path, const char *src, size_t len
hashmap_init(&cmd_process_map, (hashmap_cmp_fn) cmd2process_cmp, 0);
entry = NULL;
} else {
- entry = find_multi_file_filter_entry(&cmd_process_map, cmd);
+ entry = (struct cmd2process *)find_multi_file_filter_entry(&cmd_process_map, cmd);
}
fflush(NULL);
@@ -688,7 +693,7 @@ static int apply_multi_file_filter(const char *path, const char *src, size_t len
if (!entry)
return 0;
}
- process = &entry->process;
+ process = &entry->subprocess.process;
if (!(wanted_capability & entry->supported_capabilities))
return 0;
@@ -759,7 +764,7 @@ static int apply_multi_file_filter(const char *path, const char *src, size_t len
* Force shutdown and restart if another blob requires filtering.
*/
error("external filter '%s' failed", cmd);
- kill_multi_file_filter(&cmd_process_map, entry);
+ kill_multi_file_filter(&cmd_process_map, &entry->subprocess);
}
} else {
strbuf_swap(dst, &nbuf);
--
2.12.2.gvfs.2.20.g3624a68d62.dirty
next prev parent reply other threads:[~2017-05-05 15:29 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-05 15:27 [PATCH v7 00/10] refactor the filter process code into a reusable module Ben Peart
2017-05-05 15:27 ` [PATCH v7 01/10] convert: remove erroneous tests for errno == EPIPE Ben Peart
2017-05-05 15:27 ` [PATCH v7 02/10] pkt-line: fix packet_read_line() to handle len < 0 errors Ben Peart
2017-05-05 15:27 ` [PATCH v7 03/10] pkt-line: add packet_read_line_gently() Ben Peart
2017-05-05 15:27 ` [PATCH v7 04/10] convert: move packet_write_line() into pkt-line as packet_writel() Ben Peart
2017-05-13 9:04 ` Jeff King
2017-05-15 4:02 ` Junio C Hamano
2017-05-05 15:27 ` [PATCH v7 05/10] convert: split start_multi_file_filter() into two separate functions Ben Peart
2017-05-05 15:27 ` Ben Peart [this message]
2017-05-05 15:27 ` [PATCH v7 07/10] convert: Update generic functions to only use generic data structures Ben Peart
2017-05-05 15:28 ` [PATCH v7 08/10] convert: rename reusable sub-process functions Ben Peart
2017-05-05 15:28 ` [PATCH v7 09/10] sub-process: move sub-process functions into separate files Ben Peart
2017-05-13 9:07 ` Jeff King
2017-05-05 15:28 ` [PATCH v7 10/10] convert: Update subprocess_read_status to not die on EOF Ben Peart
2017-05-08 1:58 ` [PATCH v7 00/10] refactor the filter process code into a reusable module Junio C Hamano
2017-05-13 9:16 ` Jeff King
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