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| author | Simo Sorce <idra@samba.org> | 2011-05-09 05:37:29 -0400 |
|---|---|---|
| committer | Andreas Schneider <asn@samba.org> | 2011-08-10 18:14:03 +0200 |
| commit | de08cd99b2832aca319d81cd27c0c71838567f8d (patch) | |
| tree | 633278ab15603aba3c5a5acd0dfc3cb017626054 /source3/printing/spoolssd.c | |
| parent | 567ca037866e188142ddc4533324e80080e93b81 (diff) | |
| download | samba-de08cd99b2832aca319d81cd27c0c71838567f8d.tar.gz samba-de08cd99b2832aca319d81cd27c0c71838567f8d.tar.bz2 samba-de08cd99b2832aca319d81cd27c0c71838567f8d.zip | |
s3-spoolssd: expand children pool when necessary
Signed-off-by: Andreas Schneider <asn@samba.org>
Diffstat (limited to 'source3/printing/spoolssd.c')
| -rw-r--r-- | source3/printing/spoolssd.c | 41 |
1 files changed, 34 insertions, 7 deletions
diff --git a/source3/printing/spoolssd.c b/source3/printing/spoolssd.c index ab0ab23687..99bdaf7883 100644 --- a/source3/printing/spoolssd.c +++ b/source3/printing/spoolssd.c @@ -40,17 +40,31 @@ #define SPOOLSS_SPAWN_RATE 5 #define SPOOLSS_MIN_LIFE 60 /* 1 minute minimum life time */ +#define SPOOLSS_ALL_FINE 0x00 +#define SPOOLSS_NEW_MAX 0x01 +#define SPOLLSS_ENOSPC 0x02 + static int spoolss_min_children; static int spoolss_max_children; static int spoolss_spawn_rate; +static int spoolss_prefork_status; static void spoolss_prefork_config(void) { + static int spoolss_prefork_config_init = false; const char *prefork_str; int min, max, rate; bool use_defaults = false; int ret; + if (!spoolss_prefork_config_init) { + spoolss_prefork_status = SPOOLSS_ALL_FINE; + spoolss_min_children = 0; + spoolss_max_children = 0; + spoolss_spawn_rate = 0; + spoolss_prefork_config_init = true; + } + prefork_str = lp_parm_const_string(GLOBAL_SECTION_SNUM, "spoolssd", "prefork", "none"); if (strcmp(prefork_str, "none") == 0) { @@ -64,14 +78,18 @@ static void spoolss_prefork_config(void) } if (use_defaults) { - spoolss_min_children = SPOOLSS_MIN_CHILDREN; - spoolss_max_children = SPOOLSS_MAX_CHILDREN; - spoolss_spawn_rate = SPOOLSS_SPAWN_RATE; - } else { - spoolss_min_children = min; - spoolss_max_children = max; - spoolss_spawn_rate = rate; + min = SPOOLSS_MIN_CHILDREN; + max = SPOOLSS_MAX_CHILDREN; + rate = SPOOLSS_SPAWN_RATE; + } + + if (max > spoolss_max_children && spoolss_max_children != 0) { + spoolss_prefork_status |= SPOOLSS_NEW_MAX; } + + spoolss_min_children = min; + spoolss_max_children = max; + spoolss_spawn_rate = rate; } void start_spoolssd(struct tevent_context *ev_ctx, @@ -584,6 +602,15 @@ static void spoolssd_check_children(struct tevent_context *ev_ctx, pfp = talloc_get_type_abort(pvt, struct prefork_pool); + if ((spoolss_prefork_status & SPOOLSS_NEW_MAX) && + !(spoolss_prefork_status & SPOLLSS_ENOSPC)) { + ret = prefork_expand_pool(pfp, spoolss_max_children); + if (ret == ENOSPC) { + spoolss_prefork_status |= SPOLLSS_ENOSPC; + } + spoolss_prefork_status &= ~SPOOLSS_NEW_MAX; + } + active = prefork_count_active_children(pfp, &total); if (total - active < spoolss_spawn_rate) { |