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Diffstat (limited to 'erts/emulator/sys/ose/sys.c')
-rw-r--r--erts/emulator/sys/ose/sys.c145
1 files changed, 50 insertions, 95 deletions
diff --git a/erts/emulator/sys/ose/sys.c b/erts/emulator/sys/ose/sys.c
index a8a99ceca6..6e55301d6e 100644
--- a/erts/emulator/sys/ose/sys.c
+++ b/erts/emulator/sys/ose/sys.c
@@ -26,13 +26,8 @@
#define _XOPEN_SOURCE
#endif
-#include <sys/time.h> /* ose*/
+#include <sys/time.h>
#include <time.h>
-/* ose
-#include <signal.h>
-#include <sys/wait.h>
-#include <sys/utsname.h>
-*/
#include <sys/uio.h>
#include <termios.h>
@@ -51,32 +46,19 @@
#endif
#define ERTS_WANT_BREAK_HANDLING
-#define WANT_NONBLOCKING /* must define this to pull in defs from sys.h */
+#define WANT_NONBLOCKING
#include "sys.h"
#include "erl_thr_progress.h"
-#if defined(__APPLE__) && defined(__MACH__) && !defined(__DARWIN__)
-#define __DARWIN__ 1
-#endif
-
#ifdef USE_THREADS
#include "erl_threads.h"
#endif
#include "erl_mseg.h"
-/*ose*/
#include "unistd.h"
#include "efs.h"
#include "erl_printf.h"
-#if 0
-#define TRACE do { \
- erts_fprintf(stderr, " %s / %d / pid 0x%x\n", __FUNCTION__, __LINE__, current_process()); \
- } while(0)
-#else
-#define TRACE do {} while(0)
-#endif
-/*ose*/
extern char **environ;
static erts_smp_rwmtx_t environ_rwmtx;
@@ -95,28 +77,9 @@ static erts_smp_rwmtx_t environ_rwmtx;
#include "erl_check_io.h"
#include "erl_cpu_topology.h"
-#ifndef DISABLE_VFORK
-#define DISABLE_VFORK 0
-#endif
-
/* The priority for reader/writer processes */
#define FD_PROC_PRI 20
-/*
- * [OTP-3906]
- * Solaris signal management gets confused when threads are used and a
- * lot of child processes dies. The confusion results in that SIGCHLD
- * signals aren't delivered to the emulator which in turn results in
- * a lot of defunct processes in the system.
- *
- * The problem seems to appear when a signal is frequently
- * blocked/unblocked at the same time as the signal is frequently
- * propagated. The child waiter thread is a workaround for this problem.
- * The SIGCHLD signal is always blocked (in all threads), and the child
- * waiter thread fetches the signal by a call to sigwait(). See
- * child_waiter().
- */
-
typedef struct ErtsSysReportExit_ ErtsSysReportExit;
struct ErtsSysReportExit_ {
ErtsSysReportExit *next;
@@ -516,8 +479,8 @@ int sys_max_files(void)
char os_type[] = "ose";
void
-os_flavor(char* namebuf, /* Where to return the name. */
- unsigned size) /* Size of name buffer. */
+os_flavor(char* namebuf, /* Where to return the name. */
+ unsigned size) /* Size of name buffer. */
{
#if 0
struct utsname uts; /* Information about the system. */
@@ -694,7 +657,8 @@ static int set_driver_data(ErlDrvPort port_num,
ErtsSysReportExit *report_exit;
OseSignal *sig;
- /*erts_fprintf(stderr, " %s / pid %x / ofd %d / ifd %d\n", __FUNCTION__, current_process(), ofd, ifd);*/
+ /*erts_fprintf(stderr, " %s / pid %x / ofd %d / ifd %d\n",
+ __FUNCTION__, current_process(), ofd, ifd);*/
if (!exit_status)
@@ -709,9 +673,11 @@ static int set_driver_data(ErlDrvPort port_num,
report_exit->ofd = read_write & DO_WRITE ? ofd : -1;
if (read_write & DO_READ)
- report_exit->in_sig_descr = erl_drv_ose_event_alloc(ERTS_SIGNAL_FD_DRV_ASYNC, ifd);
+ report_exit->in_sig_descr =
+ erl_drv_ose_event_alloc(ERTS_SIGNAL_FD_DRV_ASYNC, ifd);
if (read_write & DO_WRITE)
- report_exit->out_sig_descr = erl_drv_ose_event_alloc(ERTS_SIGNAL_FD_DRV_ASYNC, ofd);
+ report_exit->out_sig_descr =
+ erl_drv_ose_event_alloc(ERTS_SIGNAL_FD_DRV_ASYNC, ofd);
report_exit_list = report_exit;
}
@@ -727,11 +693,13 @@ static int set_driver_data(ErlDrvPort port_num,
driver_data[ifd].pid = pid;
driver_data[ifd].alive = 1;
driver_data[ifd].status = 0;
- driver_data[ifd].in_sig_descr = erl_drv_ose_event_alloc(ERTS_SIGNAL_FD_DRV_ASYNC,ifd);
+ driver_data[ifd].in_sig_descr =
+ erl_drv_ose_event_alloc(ERTS_SIGNAL_FD_DRV_ASYNC,ifd);
driver_data[ifd].in_proc = create_process(OS_PRI_PROC,"beam_fd_reader",
fd_reader_process, 0x800,
- FD_PROC_PRI, 0, 0, NULL, 0, 0);
+ FD_PROC_PRI, 0, 0,
+ NULL, 0, 0);
efs_clone(driver_data[ifd].in_proc);
sig = alloc(sizeof(SysDriverConfSignal), ERTS_SIGNAL_FD_DRV_CONFIG);
sig->conf_async.fd = ifd;
@@ -744,9 +712,10 @@ static int set_driver_data(ErlDrvPort port_num,
driver_data[ifd].out_sig_descr =
erl_drv_ose_event_alloc(ERTS_SIGNAL_FD_DRV_ASYNC,ofd);
driver_data[ifd].pdl = driver_pdl_create(port_num);
- driver_data[ifd].out_proc = create_process(OS_PRI_PROC, "beam_fd_writer",
- fd_writer_process, 0x800,
- FD_PROC_PRI, 0, 0, NULL, 0, 0);
+ driver_data[ifd].out_proc =
+ create_process(OS_PRI_PROC,"beam_fd_writer",
+ fd_writer_process, 0x800,
+ FD_PROC_PRI, 0, 0, NULL, 0, 0);
sig = alloc(sizeof(SysDriverConfSignal), ERTS_SIGNAL_FD_DRV_CONFIG);
sig->conf_async.fd = ofd;
sig->conf_async.parent = current_process();
@@ -758,7 +727,8 @@ static int set_driver_data(ErlDrvPort port_num,
} else { /* DO_READ only */
driver_data[ifd].ofd = -1;
}
- (void) driver_select(port_num, driver_data[ifd].in_sig_descr, (ERL_DRV_READ | ERL_DRV_USE), 1);
+ (void) driver_select(port_num, driver_data[ifd].in_sig_descr,
+ (ERL_DRV_READ | ERL_DRV_USE), 1);
return(ifd);
} else { /* DO_WRITE only */
driver_data[ofd].packet_bytes = packet_bytes;
@@ -768,12 +738,13 @@ static int set_driver_data(ErlDrvPort port_num,
driver_data[ofd].pid = pid;
driver_data[ofd].alive = 1;
driver_data[ofd].status = 0;
- driver_data[ofd].in_sig_descr = erl_drv_ose_event_alloc(ERTS_SIGNAL_FD_DRV_ASYNC,
- ofd);
+ driver_data[ofd].in_sig_descr =
+ erl_drv_ose_event_alloc(ERTS_SIGNAL_FD_DRV_ASYNC,ofd);
driver_data[ofd].out_sig_descr = driver_data[ofd].in_sig_descr;
- driver_data[ofd].out_proc = create_process(OS_PRI_PROC, "beam_fd_writer",
- fd_writer_process, 0x800,
- FD_PROC_PRI, 0, 0, NULL, 0, 0);
+ driver_data[ofd].out_proc =
+ create_process(OS_PRI_PROC, "beam_fd_writer",
+ fd_writer_process, 0x800,
+ FD_PROC_PRI, 0, 0, NULL, 0, 0);
sig = alloc(sizeof(SysDriverConfSignal), ERTS_SIGNAL_FD_DRV_CONFIG);
sig->conf_async.fd = ofd;
sig->conf_async.parent = current_process();
@@ -788,11 +759,11 @@ static int set_driver_data(ErlDrvPort port_num,
static int spawn_init()
{
int i;
- TRACE;
driver_data = (struct driver_data *)
erts_alloc(ERTS_ALC_T_DRV_TAB, max_files * sizeof(struct driver_data));
- erts_smp_atomic_add_nob(&sys_misc_mem_sz, max_files * sizeof(struct driver_data));
+ erts_smp_atomic_add_nob(&sys_misc_mem_sz,
+ max_files * sizeof(struct driver_data));
for (i = 0; i < max_files; i++)
driver_data[i].pid = -1;
@@ -802,7 +773,6 @@ static int spawn_init()
static void init_fd_data(int fd, ErlDrvPort port_num)
{
- TRACE;
fd_data[fd].buf = NULL;
fd_data[fd].cpos = NULL;
@@ -811,12 +781,13 @@ static void init_fd_data(int fd, ErlDrvPort port_num)
fd_data[fd].psz = 0;
}
-static ErlDrvData spawn_start(ErlDrvPort port_num, char* name, SysDriverOpts* opts)
+static ErlDrvData spawn_start(ErlDrvPort port_num,
+ char* name,
+ SysDriverOpts* opts)
{
long res = 0;
- TRACE;
/* Have to implement for OSE */
return (ErlDrvData)res;
}
@@ -833,12 +804,8 @@ OS_PROCESS(fd_reader_process) {
erts_lcnt_init();
#endif
- TRACE;
-
sig = receive(sigsel);
- TRACE;
-
fd = sig->conf_async.fd;
parent = sig->conf_async.parent;
@@ -890,14 +857,12 @@ OS_PROCESS(fd_writer_process) {
OseSignal *sig;
PROCESS parent;
int fd;
- SIGSELECT sigsel[] = { 1, ERTS_SIGNAL_FD_DRV_CONFIG, ERTS_SIGNAL_FD_DRV_ASYNC };
+ SIGSELECT sigsel[] = { 1, ERTS_SIGNAL_FD_DRV_CONFIG,
+ ERTS_SIGNAL_FD_DRV_ASYNC };
- TRACE;
/* Only wait for config event with the fd which we are printing to */
sig = receive(sigsel);
- TRACE;
-
fd = sig->conf_async.fd;
parent = sig->conf_async.parent;
free_buf(&sig);
@@ -944,12 +909,13 @@ OS_PROCESS(fd_writer_process) {
;
iov = driver_alloc(sizeof(SysIOVec) * iovcnt);
memcpy(iov, iov0, iovcnt * sizeof(SysIOVec));
- driver_pdl_unlock(driver_data[fd].pdl);
/* Let go of lock until we deque from original vector */
+ driver_pdl_unlock(driver_data[fd].pdl);
if (iovlen > 0) {
for (i = 0; i < iovcnt; i++) {
- res = write(fd, iov[i].iov_base, iov[i].iov_len > 256 ? 256 : iov[i].iov_len);
+ res = write(fd, iov[i].iov_base,
+ iov[i].iov_len > 256 ? 256 : iov[i].iov_len);
if (res < 0)
break;
n += res;
@@ -1024,8 +990,6 @@ static ErlDrvData fd_start(ErlDrvPort port_num, char* name,
{
ErlDrvData res;
- TRACE;
-
CHLD_STAT_LOCK;
if (opts->read_write & DO_READ) {
init_fd_data(opts->ifd, port_num);
@@ -1042,8 +1006,6 @@ static ErlDrvData fd_start(ErlDrvPort port_num, char* name,
static void clear_fd_data(int fd)
{
- TRACE;
-
if (fd_data[fd].sz > 0) {
erts_free(ERTS_ALC_T_FD_ENTRY_BUF, (void *) fd_data[fd].buf);
ASSERT(erts_smp_atomic_read_nob(&sys_misc_mem_sz) >= fd_data[fd].sz);
@@ -1059,7 +1021,6 @@ static void clear_fd_data(int fd)
static void nbio_stop_fd(ErlDrvPort prt, ErlDrvEvent ev)
{
int fd;
- TRACE;
driver_select(prt,ev,DO_READ|DO_WRITE,0);
erl_drv_ose_event_fetch(ev, NULL, &fd);
clear_fd_data(fd);
@@ -1070,12 +1031,12 @@ static void fd_stop(ErlDrvData fd) /* Does not close the fds */
{
int ofd;
- TRACE;
-
- nbio_stop_fd(driver_data[(int)(long)fd].port_num, driver_data[(int)(long)fd].in_sig_descr);
+ nbio_stop_fd(driver_data[(int)(long)fd].port_num,
+ driver_data[(int)(long)fd].in_sig_descr);
ofd = driver_data[(int)(long)fd].ofd;
if (ofd != (int)(long)fd && ofd != -1)
- nbio_stop_fd(driver_data[(int)(long)fd].port_num, driver_data[(int)(long)fd].out_sig_descr);
+ nbio_stop_fd(driver_data[(int)(long)fd].port_num,
+ driver_data[(int)(long)fd].out_sig_descr);
}
/* Note that driver_data[fd].ifd == fd if the port was opened for reading, */
@@ -1086,8 +1047,6 @@ static void erl_stop(ErlDrvData fd)
ErlDrvPort prt;
int ofd;
- TRACE;
-
prt = driver_data[(int)(long)fd].port_num;
nbio_stop_fd(prt, driver_data[(int)(long)fd].in_sig_descr);
@@ -1106,9 +1065,11 @@ static void erl_stop(ErlDrvData fd)
/* SMP note: Close has to be last thing done (open file descriptors work
as locks on driver_data[] entries) */
- driver_select(prt, driver_data[(int)(long)fd].in_sig_descr, ERL_DRV_USE, 0); /* close(fd); */
+ driver_select(prt, driver_data[(int)(long)fd].in_sig_descr,
+ ERL_DRV_USE, 0); /* close(fd); */
if (ofd >= 0) {
- driver_select(prt, driver_data[(int)(long)fd].out_sig_descr, ERL_DRV_USE, 0); /* close(ofd); */
+ driver_select(prt, driver_data[(int)(long)fd].out_sig_descr,
+ ERL_DRV_USE, 0); /* close(ofd); */
}
}
@@ -1122,8 +1083,6 @@ static void outputv(ErlDrvData e, ErlIOVec* ev)
char* lbp;
ErlDrvSizeT len = ev->size;
- TRACE;
-
/* (len > ((unsigned long)-1 >> (4-pb)*8)) */
/* if (pb >= 0 && (len & (((ErlDrvSizeT)1 << (pb*8))) - 1) != len) {*/
if (((pb == 2) && (len > 0xffff)) || (pb == 1 && len > 0xff)) {
@@ -1150,7 +1109,8 @@ static void outputv(ErlDrvData e, ErlIOVec* ev)
/* fprintf(stderr,"0x%x: outputv, enq+sel\n", current_process()); */
driver_enqv(ix, ev, 0); /* n is the skip value */
driver_pdl_unlock(driver_data[fd].pdl);
- driver_select(ix, driver_data[fd].out_sig_descr, ERL_DRV_WRITE|ERL_DRV_USE, 1);
+ driver_select(ix, driver_data[fd].out_sig_descr,
+ ERL_DRV_WRITE|ERL_DRV_USE, 1);
sig = alloc(sizeof(SysDriverAsyncSignal),ERTS_SIGNAL_FD_DRV_ASYNC);
sig->sys_async.type = fd;
sig->sys_async.res = pb+len;
@@ -1173,8 +1133,6 @@ static void output(ErlDrvData e, char* buf, ErlDrvSizeT len)
struct iovec iv[2];
#endif
- TRACE;
-
/* (len > ((unsigned long)-1 >> (4-pb)*8)) */
if (((pb == 2) && (len > 0xffff)) || (pb == 1 && len > 0xff)) {
driver_failure_posix(ix, EINVAL);
@@ -1204,7 +1162,8 @@ static void output(ErlDrvData e, char* buf, ErlDrvSizeT len)
driver_enq(ix, lbp, pb);
driver_enq(ix, buf, len);
driver_pdl_unlock(driver_data[fd].pdl);
- driver_select(ix, driver_data[ofd].out_sig_descr, ERL_DRV_WRITE|ERL_DRV_USE, 1);
+ driver_select(ix, driver_data[ofd].out_sig_descr,
+ ERL_DRV_WRITE|ERL_DRV_USE, 1);
sig = alloc(sizeof(SysDriverAsyncSignal),ERTS_SIGNAL_FD_DRV_ASYNC);
sig->sys_async.type = fd;
sig->sys_async.res = pb+len;
@@ -1282,8 +1241,6 @@ static void ready_input(ErlDrvData e, ErlDrvEvent ready_fd)
int res;
Uint h;
- TRACE;
-
port_num = driver_data[fd].port_num;
packet_bytes = driver_data[fd].packet_bytes;
@@ -1331,7 +1288,7 @@ static void ready_input(ErlDrvData e, ErlDrvEvent ready_fd)
if ((errno != EINTR) && (errno != ERRNO_BLOCK))
port_inp_failure(port_num, ready_fd, res);
}
- else if (res == 0) { /* eof */
+ else if (res == 0) { /* eof */
port_inp_failure(port_num, ready_fd, res);
}
else if (res < packet_bytes - fd_data[fd].psz) {
@@ -1373,7 +1330,7 @@ static void ready_input(ErlDrvData e, ErlDrvEvent ready_fd)
continue;
}
else { /* The last message we got was split */
- char *buf = erts_alloc_fnf(ERTS_ALC_T_FD_ENTRY_BUF, h);
+ char *buf = erts_alloc_fnf(ERTS_ALC_T_FD_ENTRY_BUF, h);
if (!buf) {
errno = ENOMEM;
port_inp_failure(port_num, ready_fd, -1);
@@ -1676,8 +1633,6 @@ int fd;
int c;
unsigned char rbuf[64];
- TRACE;
-
fflush(stdout); /* Flush query ??? */
if ((c = read(fd,rbuf,64)) <= 0) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 20:39:37 +0000