lobo/isync
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

de-obfuscate cmd_sendable()

Browse Source 
split the monster conditional and add comments.
This commit is contained in:
Oswald Buddenhagen 2017-03-04 12:47:33 +01:00
parent 0aa4c628df
commit 28d52b2b18
1 changed files with 27 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
src/drv_imap.c
View File

@ -333,15 +333,33 @@ send_imap_cmd( imap_store_t *ctx, imap_cmd_t *cmd )
static int static int
cmd_sendable( imap_store_t *ctx, imap_cmd_t *cmd ) cmd_sendable( imap_store_t *ctx, imap_cmd_t *cmd )
{ {
imap_cmd_t *cmdp; if (ctx->conn.write_buf) {
/* Don't build up a long queue in the socket, so we can
return !ctx->conn.write_buf && * control when the commands are actually sent.
!(ctx->in_progress && * This allows reliable cancelation of pending commands,
(cmdp = (imap_cmd_t *)((char *)ctx->in_progress_append - * injecting commands in front of other pending commands,
offsetof(imap_cmd_t, next)), 1) && * and keeping num_in_progress accurate. */
(cmdp->param.cont || cmdp->param.data)) && return 0;
!(cmd->param.to_trash && ctx->trashnc == TrashChecking) && }
ctx->num_in_progress < ((imap_store_conf_t *)ctx->gen.conf)->server->max_in_progress; if (ctx->in_progress) {
/* If the last command in flight ... */
imap_cmd_t *cmdp = (imap_cmd_t *)((char *)ctx->in_progress_append -
offsetof(imap_cmd_t, next));
if (cmdp->param.cont || cmdp->param.data) {
/* ... is expected to trigger a continuation request, we need to
* wait for that round-trip before sending the next command. */
return 0;
}
}
if (cmd->param.to_trash && ctx->trashnc == TrashChecking) {
/* Don't build a queue of MOVE/COPY/APPEND commands that may all fail. */
return 0;
}
if (ctx->num_in_progress >= ((imap_store_conf_t *)ctx->gen.conf)->server->max_in_progress) {
/* Too many commands in flight. */
return 0;
}
return 1;
} }
static void static void