From 127f970059371d968238c8e461bc5c547b021899 Mon Sep 17 00:00:00 2001 From: Rickard Green Date: Tue, 30 Apr 2013 12:56:50 +0200 Subject: Make high_msgq_watermark and low_msgq_watermark generic inet options --- erts/emulator/drivers/common/inet_drv.c | 131 ++++++++++++++++++-------------- 1 file changed, 72 insertions(+), 59 deletions(-) (limited to 'erts/emulator/drivers/common') diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c index fb128fff7d..0fdd6934c2 100644 --- a/erts/emulator/drivers/common/inet_drv.c +++ b/erts/emulator/drivers/common/inet_drv.c @@ -678,8 +678,8 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n) #define INET_LOPT_UDP_READ_PACKETS 33 /* Number of packets to read */ #define INET_OPT_RAW 34 /* Raw socket options */ #define INET_LOPT_TCP_SEND_TIMEOUT_CLOSE 35 /* auto-close on send timeout or not */ -#define INET_LOPT_TCP_MSGQ_HIWTRMRK 36 /* set local high watermark */ -#define INET_LOPT_TCP_MSGQ_LOWTRMRK 37 /* set local low watermark */ +#define INET_LOPT_MSGQ_HIWTRMRK 36 /* set local msgq high watermark */ +#define INET_LOPT_MSGQ_LOWTRMRK 37 /* set local msgq low watermark */ /* SCTP options: a separate range, from 100: */ #define SCTP_OPT_RTOINFO 100 #define SCTP_OPT_ASSOCINFO 101 @@ -5474,27 +5474,25 @@ static int inet_set_opts(inet_descriptor* desc, char* ptr, int len) } continue; - case INET_LOPT_TCP_MSGQ_HIWTRMRK: - if (desc->stype == SOCK_STREAM) { - ErlDrvSizeT high; - if (ival < ERL_DRV_BUSY_MSGQ_LIM_MIN - || ERL_DRV_BUSY_MSGQ_LIM_MAX < ival) - return -1; - high = (ErlDrvSizeT) ival; - erl_drv_busy_msgq_limits(desc->port, NULL, &high); - } + case INET_LOPT_MSGQ_HIWTRMRK: { + ErlDrvSizeT high; + if (ival < ERL_DRV_BUSY_MSGQ_LIM_MIN + || ERL_DRV_BUSY_MSGQ_LIM_MAX < ival) + return -1; + high = (ErlDrvSizeT) ival; + erl_drv_busy_msgq_limits(desc->port, NULL, &high); continue; + } - case INET_LOPT_TCP_MSGQ_LOWTRMRK: - if (desc->stype == SOCK_STREAM) { - ErlDrvSizeT low; - if (ival < ERL_DRV_BUSY_MSGQ_LIM_MIN - || ERL_DRV_BUSY_MSGQ_LIM_MAX < ival) - return -1; - low = (ErlDrvSizeT) ival; - erl_drv_busy_msgq_limits(desc->port, &low, NULL); - } + case INET_LOPT_MSGQ_LOWTRMRK: { + ErlDrvSizeT low; + if (ival < ERL_DRV_BUSY_MSGQ_LIM_MIN + || ERL_DRV_BUSY_MSGQ_LIM_MAX < ival) + return -1; + low = (ErlDrvSizeT) ival; + erl_drv_busy_msgq_limits(desc->port, &low, NULL); continue; + } case INET_LOPT_TCP_SEND_TIMEOUT: if (desc->stype == SOCK_STREAM) { @@ -6396,31 +6394,23 @@ static ErlDrvSSizeT inet_fill_opts(inet_descriptor* desc, } continue; - case INET_LOPT_TCP_MSGQ_HIWTRMRK: - if (desc->stype == SOCK_STREAM) { - ErlDrvSizeT high = ERL_DRV_BUSY_MSGQ_READ_ONLY; - *ptr++ = opt; - erl_drv_busy_msgq_limits(desc->port, NULL, &high); - ival = high > INT_MAX ? INT_MAX : (int) high; - put_int32(ival, ptr); - } - else { - TRUNCATE_TO(0,ptr); - } + case INET_LOPT_MSGQ_HIWTRMRK: { + ErlDrvSizeT high = ERL_DRV_BUSY_MSGQ_READ_ONLY; + *ptr++ = opt; + erl_drv_busy_msgq_limits(desc->port, NULL, &high); + ival = high > INT_MAX ? INT_MAX : (int) high; + put_int32(ival, ptr); continue; + } - case INET_LOPT_TCP_MSGQ_LOWTRMRK: - if (desc->stype == SOCK_STREAM) { - ErlDrvSizeT low = ERL_DRV_BUSY_MSGQ_READ_ONLY; - *ptr++ = opt; - erl_drv_busy_msgq_limits(desc->port, &low, NULL); - ival = low > INT_MAX ? INT_MAX : (int) low; - put_int32(ival, ptr); - } - else { - TRUNCATE_TO(0,ptr); - } + case INET_LOPT_MSGQ_LOWTRMRK: { + ErlDrvSizeT low = ERL_DRV_BUSY_MSGQ_READ_ONLY; + *ptr++ = opt; + erl_drv_busy_msgq_limits(desc->port, &low, NULL); + ival = low > INT_MAX ? INT_MAX : (int) low; + put_int32(ival, ptr); continue; + } case INET_LOPT_TCP_SEND_TIMEOUT: if (desc->stype == SOCK_STREAM) { @@ -7469,6 +7459,20 @@ static void inet_stop(inet_descriptor* desc) FREE(desc); } +static void set_default_msgq_limits(ErlDrvPort port) +{ + ErlDrvSizeT q_high = INET_HIGH_MSGQ_WATERMARK; + ErlDrvSizeT q_low = INET_LOW_MSGQ_WATERMARK; + if (q_low < ERL_DRV_BUSY_MSGQ_LIM_MIN) + q_low = ERL_DRV_BUSY_MSGQ_LIM_MIN; + else if (q_low > ERL_DRV_BUSY_MSGQ_LIM_MAX) + q_low = ERL_DRV_BUSY_MSGQ_LIM_MAX; + if (q_high < ERL_DRV_BUSY_MSGQ_LIM_MIN) + q_high = ERL_DRV_BUSY_MSGQ_LIM_MIN; + else if (q_high > ERL_DRV_BUSY_MSGQ_LIM_MAX) + q_high = ERL_DRV_BUSY_MSGQ_LIM_MAX; + erl_drv_busy_msgq_limits(port, &q_low, &q_high); +} /* Allocate descriptor */ static ErlDrvData inet_start(ErlDrvPort port, int size, int protocol) @@ -8089,9 +8093,8 @@ static int tcp_inet_init(void) /* initialize the TCP descriptor */ -static ErlDrvData tcp_inet_start(ErlDrvPort port, char* args) +static ErlDrvData prep_tcp_inet_start(ErlDrvPort port, char* args) { - ErlDrvSizeT q_low, q_high; tcp_descriptor* desc; DEBUGF(("tcp_inet_start(%ld) {\r\n", (long)port)); @@ -8101,17 +8104,6 @@ static ErlDrvData tcp_inet_start(ErlDrvPort port, char* args) return ERL_DRV_ERROR_ERRNO; desc->high = INET_HIGH_WATERMARK; desc->low = INET_LOW_WATERMARK; - q_high = INET_HIGH_MSGQ_WATERMARK; - q_low = INET_LOW_MSGQ_WATERMARK; - if (q_low < ERL_DRV_BUSY_MSGQ_LIM_MIN) - q_low = ERL_DRV_BUSY_MSGQ_LIM_MIN; - else if (q_low > ERL_DRV_BUSY_MSGQ_LIM_MAX) - q_low = ERL_DRV_BUSY_MSGQ_LIM_MAX; - if (q_high < ERL_DRV_BUSY_MSGQ_LIM_MIN) - q_high = ERL_DRV_BUSY_MSGQ_LIM_MIN; - else if (q_high > ERL_DRV_BUSY_MSGQ_LIM_MAX) - q_high = ERL_DRV_BUSY_MSGQ_LIM_MAX; - erl_drv_busy_msgq_limits(port, &q_low, &q_high); desc->send_timeout = INET_INFINITY; desc->send_timeout_close = 0; desc->busy_on_send = 0; @@ -8128,6 +8120,12 @@ static ErlDrvData tcp_inet_start(ErlDrvPort port, char* args) return (ErlDrvData) desc; } +static ErlDrvData tcp_inet_start(ErlDrvPort port, char* args) +{ + ErlDrvData data = prep_tcp_inet_start(port, args); + set_default_msgq_limits(port); + return data; +} /* Copy a descriptor, by creating a new port with same settings * as the descriptor desc. * return NULL on error (SYSTEM_LIMIT no ports avail) @@ -8139,7 +8137,7 @@ static tcp_descriptor* tcp_inet_copy(tcp_descriptor* desc,SOCKET s, ErlDrvPort port = desc->inet.port; tcp_descriptor* copy_desc; - copy_desc = (tcp_descriptor*) tcp_inet_start(port, NULL); + copy_desc = (tcp_descriptor*) prep_tcp_inet_start(port, NULL); /* Setup event if needed */ if ((copy_desc->inet.s = s) != INVALID_SOCKET) { @@ -9862,12 +9860,15 @@ static int should_use_so_bsdcompat(void) * as the descriptor desc. * return NULL on error (ENFILE no ports avail) */ +static ErlDrvData packet_inet_start(ErlDrvPort port, char* args, int protocol); + static udp_descriptor* sctp_inet_copy(udp_descriptor* desc, SOCKET s, int* err) { + ErlDrvSizeT q_low, q_high; ErlDrvPort port = desc->inet.port; udp_descriptor* copy_desc; - copy_desc = (udp_descriptor*) sctp_inet_start(port, NULL); + copy_desc = (udp_descriptor*) packet_inet_start(port, NULL, IPPROTO_SCTP); /* Setup event if needed */ if ((copy_desc->inet.s = s) != INVALID_SOCKET) { @@ -9898,9 +9899,17 @@ static udp_descriptor* sctp_inet_copy(udp_descriptor* desc, SOCKET s, int* err) FREE(copy_desc); return NULL; } + + /* Read busy msgq limits of parent */ + q_low = q_high = ERL_DRV_BUSY_MSGQ_READ_ONLY; + erl_drv_busy_msgq_limits(desc->inet.port, &q_low, &q_high); + /* Write same busy msgq limits to child */ + erl_drv_busy_msgq_limits(port, &q_low, &q_high); + copy_desc->inet.port = port; copy_desc->inet.dport = driver_mk_port(port); *err = 0; + return copy_desc; } #endif @@ -9933,13 +9942,17 @@ static ErlDrvData packet_inet_start(ErlDrvPort port, char* args, int protocol) static ErlDrvData udp_inet_start(ErlDrvPort port, char *args) { - return packet_inet_start(port, args, IPPROTO_UDP); + ErlDrvData data = packet_inet_start(port, args, IPPROTO_UDP); + set_default_msgq_limits(port); + return data; } #ifdef HAVE_SCTP static ErlDrvData sctp_inet_start(ErlDrvPort port, char *args) { - return packet_inet_start(port, args, IPPROTO_SCTP); + ErlDrvData data = packet_inet_start(port, args, IPPROTO_SCTP); + set_default_msgq_limits(port); + return data; } #endif -- cgit v1.2.3