From 689d0650ab63425adaea26afe347015a204958ee Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Thu, 1 Oct 2020 21:52:16 +0200 Subject: libbb: shrink recursive_action() by reducing memory pressure function old new delta recursive_action1 - 316 +316 file_action_grep 161 164 +3 add_to_prg_cache_if_socket 202 205 +3 depmod_main 509 511 +2 writeFileToTarball 488 489 +1 parse_module 281 282 +1 fileAction 207 208 +1 act 189 190 +1 add_to_dirlist 65 64 -1 writeTarFile 196 194 -2 uuidcache_init 47 45 -2 uuidcache_check_device 109 107 -2 true_action 8 6 -2 run_parts_main 310 308 -2 netstat_main 534 532 -2 lsusb_main 29 27 -2 lspci_main 45 43 -2 initial_scan 138 136 -2 grep_main 845 843 -2 find_main 482 480 -2 config_file_action 437 435 -2 chmod_main 142 140 -2 dirAction 14 10 -4 diff_main 1544 1540 -4 chown_main 154 148 -6 skip_dir 136 129 -7 dir_act 191 184 -7 recursive_action 453 69 -384 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 7/20 up/down: 328/-439) Total: -111 bytes Signed-off-by: Denys Vlasenko --- networking/netstat.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) (limited to 'networking/netstat.c') diff --git a/networking/netstat.c b/networking/netstat.c index 936610f..3ab7b0d 100644 --- a/networking/netstat.c +++ b/networking/netstat.c @@ -272,10 +272,9 @@ static long extract_socket_inode(const char *lname) return inode; } -static int FAST_FUNC add_to_prg_cache_if_socket(const char *fileName, - struct stat *statbuf UNUSED_PARAM, - void *pid_slash_progname, - int depth UNUSED_PARAM) +static int FAST_FUNC add_to_prg_cache_if_socket(struct recursive_state *state, + const char *fileName, + struct stat *statbuf UNUSED_PARAM) { char *linkname; long inode; @@ -284,16 +283,17 @@ static int FAST_FUNC add_to_prg_cache_if_socket(const char *fileName, if (linkname != NULL) { inode = extract_socket_inode(linkname); free(linkname); - if (inode >= 0) - prg_cache_add(inode, (char *)pid_slash_progname); + if (inode >= 0) { + char *pid_slash_progname = state->userData; + prg_cache_add(inode, pid_slash_progname); + } } return TRUE; } -static int FAST_FUNC dir_act(const char *fileName, - struct stat *statbuf UNUSED_PARAM, - void *userData UNUSED_PARAM, - int depth) +static int FAST_FUNC dir_act(struct recursive_state *state, + const char *fileName, + struct stat *statbuf UNUSED_PARAM) { const char *pid; char *pid_slash_progname; @@ -301,7 +301,7 @@ static int FAST_FUNC dir_act(const char *fileName, char cmdline_buf[512]; int n, len; - if (depth == 0) /* "/proc" itself */ + if (state->depth == 0) /* "/proc" itself */ return TRUE; /* continue looking one level below /proc */ pid = fileName + sizeof("/proc/")-1; /* point after "/proc/" */ @@ -321,8 +321,8 @@ static int FAST_FUNC dir_act(const char *fileName, ACTION_RECURSE | ACTION_QUIET, add_to_prg_cache_if_socket, NULL, - (void *)pid_slash_progname, - 0); + (void *)pid_slash_progname + ); free(pid_slash_progname); if (!n) @@ -337,7 +337,7 @@ static void prg_cache_load(void) prg_cache_loaded = 1; load_ok = recursive_action("/proc", ACTION_RECURSE | ACTION_QUIET, - NULL, dir_act, NULL, 0); + NULL, dir_act, NULL); if (load_ok) return; -- cgit v1.1