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authorFlorin Coras <fcoras@cisco.com>2018-11-28 22:13:45 -0800
committerOle Trøan <otroan@employees.org>2018-11-29 08:43:16 +0000
commitdfe4cf48ae344b882f0fd53d08b6917ef4391530 (patch)
tree4182aae3e95bd881340ab1de1267615548df6a44 /src
parent8be6c40cf39f0d637a9dbfaa40ccec1d72bff34a (diff)
ldp: basic multiworker support
Change-Id: Ia794fa7e15dac02c8607c4cee2f119ad9815c0a8 Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src')
-rw-r--r--src/vcl/ldp.c278
-rw-r--r--src/vcl/vppcom.c6
-rw-r--r--src/vcl/vppcom.h5
3 files changed, 170 insertions, 119 deletions
diff --git a/src/vcl/ldp.c b/src/vcl/ldp.c
index dfbb383f046..5c70643ed24 100644
--- a/src/vcl/ldp.c
+++ b/src/vcl/ldp.c
@@ -49,22 +49,23 @@
#define DESTRUCTOR_ATTRIBUTE
#endif
+#define LDP_MAX_NWORKERS 32
+
typedef struct ldp_fd_entry_
{
- u32 sid;
+ u32 session_index;
u32 fd;
u32 fd_index;
} ldp_fd_entry_t;
-typedef struct
+typedef struct ldp_worker_ctx_
{
- int init;
- char app_name[LDP_APP_NAME_MAX];
- u32 sid_bit_val;
- u32 sid_bit_mask;
- u32 debug;
u8 *io_buffer;
clib_time_t clib_time;
+
+ /*
+ * Select state
+ */
clib_bitmap_t *rd_bitmap;
clib_bitmap_t *wr_bitmap;
clib_bitmap_t *ex_bitmap;
@@ -74,18 +75,39 @@ typedef struct
clib_bitmap_t *libc_rd_bitmap;
clib_bitmap_t *libc_wr_bitmap;
clib_bitmap_t *libc_ex_bitmap;
+ u8 select_vcl;
+
+ /*
+ * Poll state
+ */
vcl_poll_t *vcl_poll;
struct pollfd *libc_poll;
u16 *libc_poll_idxs;
- u8 select_vcl;
+
+ /*
+ * Epoll state
+ */
u8 epoll_wait_vcl;
- u8 vcl_needs_real_epoll; /*< vcl needs next epoll_create to
- go to libc_epoll */
int vcl_mq_epfd;
+
+} ldp_worker_ctx_t;
+
+typedef struct
+{
+ ldp_worker_ctx_t *workers;
+ int init;
+ char app_name[LDP_APP_NAME_MAX];
+ u32 sid_bit_val;
+ u32 sid_bit_mask;
+ u32 debug;
ldp_fd_entry_t *fd_pool;
clib_rwlock_t fd_table_lock;
- uword *sid_to_fd_table;
+ uword *session_index_to_fd_table;
+
+ /** vcl needs next epoll_create to go to libc_epoll */
+ u8 vcl_needs_real_epoll;
} ldp_main_t;
+
#define LDP_DEBUG ldp->debug
#define LDBG(_lvl, _fmt, _args...) \
@@ -100,6 +122,12 @@ static ldp_main_t ldp_main = {
static ldp_main_t *ldp = &ldp_main;
+static inline ldp_worker_ctx_t *
+ldp_worker_get_current (void)
+{
+ return (ldp->workers + vppcom_worker_index ());
+}
+
/*
* RETURN: 0 on success or -1 on error.
* */
@@ -134,10 +162,10 @@ ldp_fd_alloc (u32 sid)
return -1;
}
pool_get (ldp->fd_pool, fde);
- fde->sid = sid;
+ fde->session_index = vppcom_session_index (sid);
fde->fd_index = fde - ldp->fd_pool;
fde->fd = fde->fd_index + ldp->sid_bit_val;
- hash_set (ldp->sid_to_fd_table, sid, fde->fd);
+ hash_set (ldp->session_index_to_fd_table, fde->session_index, fde->fd);
clib_rwlock_writer_unlock (&ldp->fd_table_lock);
return fde->fd;
}
@@ -159,7 +187,7 @@ ldp_fd_from_sid (u32 sid)
int fd;
clib_rwlock_reader_lock (&ldp->fd_table_lock);
- fdp = hash_get (ldp->sid_to_fd_table, sid);
+ fdp = hash_get (ldp->session_index_to_fd_table, vppcom_session_index (sid));
fd = fdp ? *fdp : -EMFILE;
clib_rwlock_reader_unlock (&ldp->fd_table_lock);
@@ -175,20 +203,24 @@ ldp_fd_is_sid (int fd)
static inline u32
ldp_sid_from_fd (int fd)
{
+ u32 fd_index, session_index;
ldp_fd_entry_t *fde;
- u32 fd_index, sid;
if (!ldp_fd_is_sid (fd))
return INVALID_SESSION_ID;
fd_index = fd - ldp->sid_bit_val;
fde = ldp_fd_entry_get_w_lock (fd_index);
- sid = fde ? fde->sid : INVALID_SESSION_ID;
+ if (!fde)
+ {
+ LDBG (0, "unknown fd %d", fd);
+ clib_rwlock_reader_unlock (&ldp->fd_table_lock);
+ return INVALID_SESSION_ID;
+ }
+ session_index = fde->session_index;
clib_rwlock_reader_unlock (&ldp->fd_table_lock);
- /* Handle forks */
- sid = vppcom_session_handle (vppcom_session_index (sid));
- return sid;
+ return vppcom_session_handle (session_index);
}
static void
@@ -206,7 +238,7 @@ ldp_fd_free_w_sid (u32 sid)
fde = ldp_fd_entry_get_w_lock (fd_index);
if (fde)
{
- hash_unset (ldp->sid_to_fd_table, fde->sid);
+ hash_unset (ldp->session_index_to_fd_table, fde->session_index);
pool_put (ldp->fd_pool, fde);
}
clib_rwlock_writer_unlock (&ldp->fd_table_lock);
@@ -215,6 +247,7 @@ ldp_fd_free_w_sid (u32 sid)
static inline int
ldp_init (void)
{
+ ldp_worker_ctx_t *ldpw;
int rv;
if (PREDICT_TRUE (ldp->init))
@@ -232,6 +265,8 @@ ldp_init (void)
return rv;
}
ldp->vcl_needs_real_epoll = 0;
+ pool_alloc (ldp->workers, LDP_MAX_NWORKERS);
+ ldpw = ldp_worker_get_current ();
char *env_var_str = getenv (LDP_ENV_DEBUG);
if (env_var_str)
@@ -301,7 +336,7 @@ ldp_init (void)
}
}
- clib_time_init (&ldp->clib_time);
+ clib_time_init (&ldpw->clib_time);
clib_rwlock_init (&ldp->fd_table_lock);
LDBG (0, "LDP<%d>: LDP initialization: done!", getpid ());
@@ -353,13 +388,13 @@ close (int fd)
LDBG (0, "LDP<%d>: fd %d (0x%x): calling %s(): sid %u (0x%x)",
getpid (), fd, fd, func_str, sid, sid);
- ldp_fd_free_w_sid (sid);
rv = vppcom_session_close (sid);
if (rv != VPPCOM_OK)
{
errno = -rv;
rv = -1;
}
+ ldp_fd_free_w_sid (sid);
}
else
{
@@ -859,6 +894,7 @@ ldp_pselect (int nfds, fd_set * __restrict readfds,
const __sigset_t * __restrict sigmask)
{
uword sid_bits, sid_bits_set, libc_bits, libc_bits_set;
+ ldp_worker_ctx_t *ldpw = ldp_worker_get_current ();
u32 minbits = clib_max (nfds, BITS (uword)), sid;
char *func_str = "##";
f64 time_out;
@@ -882,8 +918,8 @@ ldp_pselect (int nfds, fd_set * __restrict readfds,
LDBG (3, "LDP<%d>: sleeping for %.02f seconds", getpid (),
time_out);
- time_out += clib_time_now (&ldp->clib_time);
- while (clib_time_now (&ldp->clib_time) < time_out)
+ time_out += clib_time_now (&ldpw->clib_time);
+ while (clib_time_now (&ldpw->clib_time) < time_out)
;
return 0;
}
@@ -924,31 +960,31 @@ ldp_pselect (int nfds, fd_set * __restrict readfds,
u32 n_bytes = nfds / 8 + ((nfds % 8) ? 1 : 0);
if (readfds)
{
- clib_bitmap_validate (ldp->sid_rd_bitmap, minbits);
- clib_bitmap_validate (ldp->libc_rd_bitmap, minbits);
- clib_bitmap_validate (ldp->rd_bitmap, minbits);
- clib_memcpy_fast (ldp->rd_bitmap, readfds, n_bytes);
+ clib_bitmap_validate (ldpw->sid_rd_bitmap, minbits);
+ clib_bitmap_validate (ldpw->libc_rd_bitmap, minbits);
+ clib_bitmap_validate (ldpw->rd_bitmap, minbits);
+ clib_memcpy_fast (ldpw->rd_bitmap, readfds, n_bytes);
memset (readfds, 0, n_bytes);
/* *INDENT-OFF* */
- clib_bitmap_foreach (fd, ldp->rd_bitmap, ({
+ clib_bitmap_foreach (fd, ldpw->rd_bitmap, ({
if (fd > nfds)
break;
sid = ldp_sid_from_fd (fd);
LDBG (3, "LDP<%d>: readfds: fd %d (0x%x), sid %u (0x%x)",
getpid (), fd, fd, sid, sid);
if (sid == INVALID_SESSION_ID)
- clib_bitmap_set_no_check (ldp->libc_rd_bitmap, fd, 1);
+ clib_bitmap_set_no_check (ldpw->libc_rd_bitmap, fd, 1);
else
- clib_bitmap_set_no_check (ldp->sid_rd_bitmap,
+ clib_bitmap_set_no_check (ldpw->sid_rd_bitmap,
vppcom_session_index (sid), 1);
}));
/* *INDENT-ON* */
- sid_bits_set = clib_bitmap_last_set (ldp->sid_rd_bitmap) + 1;
+ sid_bits_set = clib_bitmap_last_set (ldpw->sid_rd_bitmap) + 1;
sid_bits = (sid_bits_set > sid_bits) ? sid_bits_set : sid_bits;
- libc_bits_set = clib_bitmap_last_set (ldp->libc_rd_bitmap) + 1;
+ libc_bits_set = clib_bitmap_last_set (ldpw->libc_rd_bitmap) + 1;
libc_bits = (libc_bits_set > libc_bits) ? libc_bits_set : libc_bits;
LDBG (3, "LDP<%d>: readfds: sid_bits_set %d, sid_bits %d, "
@@ -957,31 +993,31 @@ ldp_pselect (int nfds, fd_set * __restrict readfds,
}
if (writefds)
{
- clib_bitmap_validate (ldp->sid_wr_bitmap, minbits);
- clib_bitmap_validate (ldp->libc_wr_bitmap, minbits);
- clib_bitmap_validate (ldp->wr_bitmap, minbits);
- clib_memcpy_fast (ldp->wr_bitmap, writefds, n_bytes);
+ clib_bitmap_validate (ldpw->sid_wr_bitmap, minbits);
+ clib_bitmap_validate (ldpw->libc_wr_bitmap, minbits);
+ clib_bitmap_validate (ldpw->wr_bitmap, minbits);
+ clib_memcpy_fast (ldpw->wr_bitmap, writefds, n_bytes);
memset (writefds, 0, n_bytes);
/* *INDENT-OFF* */
- clib_bitmap_foreach (fd, ldp->wr_bitmap, ({
+ clib_bitmap_foreach (fd, ldpw->wr_bitmap, ({
if (fd > nfds)
break;
sid = ldp_sid_from_fd (fd);
LDBG (3, "LDP<%d>: writefds: fd %d (0x%x), sid %u (0x%x)",
getpid (), fd, fd, sid, sid);
if (sid == INVALID_SESSION_ID)
- clib_bitmap_set_no_check (ldp->libc_wr_bitmap, fd, 1);
+ clib_bitmap_set_no_check (ldpw->libc_wr_bitmap, fd, 1);
else
- clib_bitmap_set_no_check (ldp->sid_wr_bitmap,
+ clib_bitmap_set_no_check (ldpw->sid_wr_bitmap,
vppcom_session_index (sid), 1);
}));
/* *INDENT-ON* */
- sid_bits_set = clib_bitmap_last_set (ldp->sid_wr_bitmap) + 1;
+ sid_bits_set = clib_bitmap_last_set (ldpw->sid_wr_bitmap) + 1;
sid_bits = (sid_bits_set > sid_bits) ? sid_bits_set : sid_bits;
- libc_bits_set = clib_bitmap_last_set (ldp->libc_wr_bitmap) + 1;
+ libc_bits_set = clib_bitmap_last_set (ldpw->libc_wr_bitmap) + 1;
libc_bits = (libc_bits_set > libc_bits) ? libc_bits_set : libc_bits;
LDBG (3, "LDP<%d>: writefds: sid_bits_set %d, sid_bits %d, "
@@ -990,31 +1026,31 @@ ldp_pselect (int nfds, fd_set * __restrict readfds,
}
if (exceptfds)
{
- clib_bitmap_validate (ldp->sid_ex_bitmap, minbits);
- clib_bitmap_validate (ldp->libc_ex_bitmap, minbits);
- clib_bitmap_validate (ldp->ex_bitmap, minbits);
- clib_memcpy_fast (ldp->ex_bitmap, exceptfds, n_bytes);
+ clib_bitmap_validate (ldpw->sid_ex_bitmap, minbits);
+ clib_bitmap_validate (ldpw->libc_ex_bitmap, minbits);
+ clib_bitmap_validate (ldpw->ex_bitmap, minbits);
+ clib_memcpy_fast (ldpw->ex_bitmap, exceptfds, n_bytes);
memset (exceptfds, 0, n_bytes);
/* *INDENT-OFF* */
- clib_bitmap_foreach (fd, ldp->ex_bitmap, ({
+ clib_bitmap_foreach (fd, ldpw->ex_bitmap, ({
if (fd > nfds)
break;
sid = ldp_sid_from_fd (fd);
LDBG (3, "LDP<%d>: exceptfds: fd %d (0x%x), sid %u (0x%x)",
getpid (), fd, fd, sid, sid);
if (sid == INVALID_SESSION_ID)
- clib_bitmap_set_no_check (ldp->libc_ex_bitmap, fd, 1);
+ clib_bitmap_set_no_check (ldpw->libc_ex_bitmap, fd, 1);
else
- clib_bitmap_set_no_check (ldp->sid_ex_bitmap,
+ clib_bitmap_set_no_check (ldpw->sid_ex_bitmap,
vppcom_session_index (sid), 1);
}));
/* *INDENT-ON* */
- sid_bits_set = clib_bitmap_last_set (ldp->sid_ex_bitmap) + 1;
+ sid_bits_set = clib_bitmap_last_set (ldpw->sid_ex_bitmap) + 1;
sid_bits = (sid_bits_set > sid_bits) ? sid_bits_set : sid_bits;
- libc_bits_set = clib_bitmap_last_set (ldp->libc_ex_bitmap) + 1;
+ libc_bits_set = clib_bitmap_last_set (ldpw->libc_ex_bitmap) + 1;
libc_bits = (libc_bits_set > libc_bits) ? libc_bits_set : libc_bits;
LDBG (3, "LDP<%d>: exceptfds: sid_bits_set %d, sid_bits %d, "
@@ -1033,27 +1069,27 @@ ldp_pselect (int nfds, fd_set * __restrict readfds,
{
if (sid_bits)
{
- if (!ldp->select_vcl)
+ if (!ldpw->select_vcl)
{
func_str = "vppcom_select";
if (readfds)
- clib_memcpy_fast (ldp->rd_bitmap, ldp->sid_rd_bitmap,
- vec_len (ldp->rd_bitmap) *
+ clib_memcpy_fast (ldpw->rd_bitmap, ldpw->sid_rd_bitmap,
+ vec_len (ldpw->rd_bitmap) *
sizeof (clib_bitmap_t));
if (writefds)
- clib_memcpy_fast (ldp->wr_bitmap, ldp->sid_wr_bitmap,
- vec_len (ldp->wr_bitmap) *
+ clib_memcpy_fast (ldpw->wr_bitmap, ldpw->sid_wr_bitmap,
+ vec_len (ldpw->wr_bitmap) *
sizeof (clib_bitmap_t));
if (exceptfds)
- clib_memcpy_fast (ldp->ex_bitmap, ldp->sid_ex_bitmap,
- vec_len (ldp->ex_bitmap) *
+ clib_memcpy_fast (ldpw->ex_bitmap, ldpw->sid_ex_bitmap,
+ vec_len (ldpw->ex_bitmap) *
sizeof (clib_bitmap_t));
rv = vppcom_select (sid_bits,
- readfds ? ldp->rd_bitmap : NULL,
- writefds ? ldp->wr_bitmap : NULL,
- exceptfds ? ldp->ex_bitmap : NULL, 0);
+ readfds ? ldpw->rd_bitmap : NULL,
+ writefds ? ldpw->wr_bitmap : NULL,
+ exceptfds ? ldpw->ex_bitmap : NULL, 0);
if (rv < 0)
{
errno = -rv;
@@ -1064,7 +1100,7 @@ ldp_pselect (int nfds, fd_set * __restrict readfds,
if (readfds)
{
/* *INDENT-OFF* */
- clib_bitmap_foreach (sid, ldp->rd_bitmap,
+ clib_bitmap_foreach (sid, ldpw->rd_bitmap,
({
fd = ldp_fd_from_sid (vppcom_session_handle (sid));
if (PREDICT_FALSE (fd < 0))
@@ -1080,7 +1116,7 @@ ldp_pselect (int nfds, fd_set * __restrict readfds,
if (writefds)
{
/* *INDENT-OFF* */
- clib_bitmap_foreach (sid, ldp->wr_bitmap,
+ clib_bitmap_foreach (sid, ldpw->wr_bitmap,
({
fd = ldp_fd_from_sid (vppcom_session_handle (sid));
if (PREDICT_FALSE (fd < 0))
@@ -1096,7 +1132,7 @@ ldp_pselect (int nfds, fd_set * __restrict readfds,
if (exceptfds)
{
/* *INDENT-OFF* */
- clib_bitmap_foreach (sid, ldp->ex_bitmap,
+ clib_bitmap_foreach (sid, ldpw->ex_bitmap,
({
fd = ldp_fd_from_sid (vppcom_session_handle (sid));
if (PREDICT_FALSE (fd < 0))
@@ -1109,12 +1145,12 @@ ldp_pselect (int nfds, fd_set * __restrict readfds,
}));
/* *INDENT-ON* */
}
- ldp->select_vcl = 1;
+ ldpw->select_vcl = 1;
goto done;
}
}
else
- ldp->select_vcl = 0;
+ ldpw->select_vcl = 0;
}
if (libc_bits)
{
@@ -1123,16 +1159,16 @@ ldp_pselect (int nfds, fd_set * __restrict readfds,
func_str = "libc_pselect";
if (readfds)
- clib_memcpy_fast (readfds, ldp->libc_rd_bitmap,
- vec_len (ldp->rd_bitmap) *
+ clib_memcpy_fast (readfds, ldpw->libc_rd_bitmap,
+ vec_len (ldpw->rd_bitmap) *
sizeof (clib_bitmap_t));
if (writefds)
- clib_memcpy_fast (writefds, ldp->libc_wr_bitmap,
- vec_len (ldp->wr_bitmap) *
+ clib_memcpy_fast (writefds, ldpw->libc_wr_bitmap,
+ vec_len (ldpw->wr_bitmap) *
sizeof (clib_bitmap_t));
if (exceptfds)
- clib_memcpy_fast (exceptfds, ldp->libc_ex_bitmap,
- vec_len (ldp->ex_bitmap) *
+ clib_memcpy_fast (exceptfds, ldpw->libc_ex_bitmap,
+ vec_len (ldpw->ex_bitmap) *
sizeof (clib_bitmap_t));
tspec.tv_sec = tspec.tv_nsec = 0;
rv = libc_pselect (libc_bits,
@@ -1143,20 +1179,20 @@ ldp_pselect (int nfds, fd_set * __restrict readfds,
goto done;
}
}
- while ((time_out == -1) || (clib_time_now (&ldp->clib_time) < time_out));
+ while ((time_out == -1) || (clib_time_now (&ldpw->clib_time) < time_out));
rv = 0;
done:
/* TBD: set timeout to amount of time left */
- clib_bitmap_zero (ldp->rd_bitmap);
- clib_bitmap_zero (ldp->sid_rd_bitmap);
- clib_bitmap_zero (ldp->libc_rd_bitmap);
- clib_bitmap_zero (ldp->wr_bitmap);
- clib_bitmap_zero (ldp->sid_wr_bitmap);
- clib_bitmap_zero (ldp->libc_wr_bitmap);
- clib_bitmap_zero (ldp->ex_bitmap);
- clib_bitmap_zero (ldp->sid_ex_bitmap);
- clib_bitmap_zero (ldp->libc_ex_bitmap);
+ clib_bitmap_zero (ldpw->rd_bitmap);
+ clib_bitmap_zero (ldpw->sid_rd_bitmap);
+ clib_bitmap_zero (ldpw->libc_rd_bitmap);
+ clib_bitmap_zero (ldpw->wr_bitmap);
+ clib_bitmap_zero (ldpw->sid_wr_bitmap);
+ clib_bitmap_zero (ldpw->libc_wr_bitmap);
+ clib_bitmap_zero (ldpw->ex_bitmap);
+ clib_bitmap_zero (ldpw->sid_ex_bitmap);
+ clib_bitmap_zero (ldpw->libc_ex_bitmap);
if (LDP_DEBUG > 3)
{
@@ -1776,6 +1812,7 @@ send (int fd, const void *buf, size_t n, int flags)
ssize_t
sendfile (int out_fd, int in_fd, off_t * offset, size_t len)
{
+ ldp_worker_ctx_t *ldpw = ldp_worker_get_current ();
ssize_t size = 0;
const char *func_str;
u32 sid = ldp_sid_from_fd (out_fd);
@@ -1804,7 +1841,7 @@ sendfile (int out_fd, int in_fd, off_t * offset, size_t len)
out_fd, out_fd, func_str, sid, sid, rv,
vppcom_retval_str (rv));
- vec_reset_length (ldp->io_buffer);
+ vec_reset_length (ldpw->io_buffer);
errno = -rv;
size = -1;
goto done;
@@ -1840,7 +1877,7 @@ sendfile (int out_fd, int in_fd, off_t * offset, size_t len)
("LDP<%d>: ERROR: fd %d (0x%x): %s(): sid %u (0x%x), "
"returned %d (%s)!", getpid (), out_fd, out_fd, func_str,
sid, sid, size, vppcom_retval_str (size));
- vec_reset_length (ldp->io_buffer);
+ vec_reset_length (ldpw->io_buffer);
errno = -size;
size = -1;
goto done;
@@ -1872,8 +1909,8 @@ sendfile (int out_fd, int in_fd, off_t * offset, size_t len)
continue;
}
bytes_to_read = clib_min (n_bytes_left, bytes_to_read);
- vec_validate (ldp->io_buffer, bytes_to_read);
- nbytes = libc_read (in_fd, ldp->io_buffer, bytes_to_read);
+ vec_validate (ldpw->io_buffer, bytes_to_read);
+ nbytes = libc_read (in_fd, ldpw->io_buffer, bytes_to_read);
if (nbytes < 0)
{
func_str = "libc_read";
@@ -1881,13 +1918,13 @@ sendfile (int out_fd, int in_fd, off_t * offset, size_t len)
clib_warning ("LDP<%d>: ERROR: fd %d (0x%x): %s(): in_fd (%d), "
"io_buffer %p, bytes_to_read %lu, rv %d, "
"errno %d", getpid (), out_fd, out_fd, func_str,
- in_fd, ldp->io_buffer, bytes_to_read, nbytes,
+ in_fd, ldpw->io_buffer, bytes_to_read, nbytes,
errno_val);
errno = errno_val;
if (results == 0)
{
- vec_reset_length (ldp->io_buffer);
+ vec_reset_length (ldpw->io_buffer);
size = -1;
goto done;
}
@@ -1898,10 +1935,10 @@ sendfile (int out_fd, int in_fd, off_t * offset, size_t len)
clib_warning
("LDP<%d>: fd %d (0x%x): calling %s(): sid %u (0x%x), "
"buf %p, nbytes %u: results %d, n_bytes_left %d", getpid (),
- out_fd, out_fd, func_str, sid, sid, ldp->io_buffer, nbytes,
+ out_fd, out_fd, func_str, sid, sid, ldpw->io_buffer, nbytes,
results, n_bytes_left);
- size = vppcom_session_write (sid, ldp->io_buffer, nbytes);
+ size = vppcom_session_write (sid, ldpw->io_buffer, nbytes);
if (size < 0)
{
if (size == VPPCOM_EAGAIN)
@@ -1927,12 +1964,12 @@ sendfile (int out_fd, int in_fd, off_t * offset, size_t len)
"sid %u, io_buffer %p, nbytes %u "
"returned %d (%s)",
getpid (), out_fd, out_fd, func_str,
- sid, ldp->io_buffer, nbytes,
+ sid, ldpw->io_buffer, nbytes,
size, vppcom_retval_str (size));
}
if (results == 0)
{
- vec_reset_length (ldp->io_buffer);
+ vec_reset_length (ldpw->io_buffer);
errno = -size;
size = -1;
goto done;
@@ -1947,7 +1984,7 @@ sendfile (int out_fd, int in_fd, off_t * offset, size_t len)
while (n_bytes_left > 0);
update_offset:
- vec_reset_length (ldp->io_buffer);
+ vec_reset_length (ldpw->io_buffer);
if (offset)
{
off_t off = lseek (in_fd, *offset, SEEK_SET);
@@ -3022,6 +3059,7 @@ shutdown (int fd, int how)
int
epoll_create1 (int flags)
{
+ ldp_worker_ctx_t *ldpw = ldp_worker_get_current ();
const char *func_str;
int rv;
@@ -3032,7 +3070,7 @@ epoll_create1 (int flags)
{
rv = libc_epoll_create1 (flags);
ldp->vcl_needs_real_epoll = 0;
- ldp->vcl_mq_epfd = rv;
+ ldpw->vcl_mq_epfd = rv;
LDBG (0, "LDP<%d>: created vcl epfd %u", getpid (), rv);
return rv;
}
@@ -3200,6 +3238,7 @@ static inline int
ldp_epoll_pwait (int epfd, struct epoll_event *events, int maxevents,
int timeout, const sigset_t * sigmask)
{
+ ldp_worker_ctx_t *ldpw = ldp_worker_get_current ();
double time_to_wait = (double) 0, time_out, now = 0;
u32 vep_idx = ldp_sid_from_fd (epfd);
int libc_epfd, rv = 0;
@@ -3214,7 +3253,7 @@ ldp_epoll_pwait (int epfd, struct epoll_event *events, int maxevents,
return -1;
}
- if (epfd == ldp->vcl_mq_epfd)
+ if (epfd == ldpw->vcl_mq_epfd)
return libc_epoll_pwait (epfd, events, maxevents, timeout, sigmask);
if (PREDICT_FALSE (vep_idx == INVALID_SESSION_ID))
@@ -3226,7 +3265,7 @@ ldp_epoll_pwait (int epfd, struct epoll_event *events, int maxevents,
}
time_to_wait = ((timeout >= 0) ? (double) timeout : 0);
- time_out = clib_time_now (&ldp->clib_time) + time_to_wait;
+ time_out = clib_time_now (&ldpw->clib_time) + time_to_wait;
func_str = "vppcom_session_attr[GET_LIBC_EPFD]";
libc_epfd = vppcom_session_attr (vep_idx, VPPCOM_ATTR_GET_LIBC_EPFD, 0, 0);
@@ -3243,7 +3282,7 @@ ldp_epoll_pwait (int epfd, struct epoll_event *events, int maxevents,
maxevents, timeout, sigmask, time_to_wait, time_out);
do
{
- if (!ldp->epoll_wait_vcl)
+ if (!ldpw->epoll_wait_vcl)
{
func_str = "vppcom_epoll_wait";
@@ -3254,7 +3293,7 @@ ldp_epoll_pwait (int epfd, struct epoll_event *events, int maxevents,
rv = vppcom_epoll_wait (vep_idx, events, maxevents, 0);
if (rv > 0)
{
- ldp->epoll_wait_vcl = 1;
+ ldpw->epoll_wait_vcl = 1;
goto done;
}
else if (rv < 0)
@@ -3265,7 +3304,7 @@ ldp_epoll_pwait (int epfd, struct epoll_event *events, int maxevents,
}
}
else
- ldp->epoll_wait_vcl = 0;
+ ldpw->epoll_wait_vcl = 0;
if (libc_epfd > 0)
{
@@ -3282,7 +3321,7 @@ ldp_epoll_pwait (int epfd, struct epoll_event *events, int maxevents,
}
if (timeout != -1)
- now = clib_time_now (&ldp->clib_time);
+ now = clib_time_now (&ldpw->clib_time);
}
while (now < time_out);
@@ -3323,6 +3362,7 @@ epoll_wait (int epfd, struct epoll_event *events, int maxevents, int timeout)
int
poll (struct pollfd *fds, nfds_t nfds, int timeout)
{
+ ldp_worker_ctx_t *ldpw = ldp_worker_get_current ();
const char *func_str = __func__;
int rv, i, n_revents = 0;
u32 sid;
@@ -3350,7 +3390,7 @@ poll (struct pollfd *fds, nfds_t nfds, int timeout)
if (sid != INVALID_SESSION_ID)
{
fds[i].fd = -fds[i].fd;
- vec_add2 (ldp->vcl_poll, vp, 1);
+ vec_add2 (ldpw->vcl_poll, vp, 1);
vp->fds_ndx = i;
vp->sid = sid;
vp->events = fds[i].events;
@@ -3364,23 +3404,23 @@ poll (struct pollfd *fds, nfds_t nfds, int timeout)
}
else
{
- vec_add1 (ldp->libc_poll, fds[i]);
- vec_add1 (ldp->libc_poll_idxs, i);
+ vec_add1 (ldpw->libc_poll, fds[i]);
+ vec_add1 (ldpw->libc_poll_idxs, i);
}
}
do
{
- if (vec_len (ldp->vcl_poll))
+ if (vec_len (ldpw->vcl_poll))
{
func_str = "vppcom_poll";
LDBG (3, "LDP<%d>: calling %s(): vcl_poll %p, n_sids %u (0x%x): "
- "n_libc_fds %u", getpid (), func_str, ldp->vcl_poll,
- vec_len (ldp->vcl_poll), vec_len (ldp->vcl_poll),
- vec_len (ldp->libc_poll));
+ "n_libc_fds %u", getpid (), func_str, ldpw->vcl_poll,
+ vec_len (ldpw->vcl_poll), vec_len (ldpw->vcl_poll),
+ vec_len (ldpw->libc_poll));
- rv = vppcom_poll (ldp->vcl_poll, vec_len (ldp->vcl_poll), 0);
+ rv = vppcom_poll (ldpw->vcl_poll, vec_len (ldpw->vcl_poll), 0);
if (rv < 0)
{
errno = -rv;
@@ -3391,14 +3431,14 @@ poll (struct pollfd *fds, nfds_t nfds, int timeout)
n_revents += rv;
}
- if (vec_len (ldp->libc_poll))
+ if (vec_len (ldpw->libc_poll))
{
func_str = "libc_poll";
LDBG (3, "LDP<%d>: calling %s(): fds %p, nfds %u: n_sids %u",
- getpid (), fds, nfds, vec_len (ldp->vcl_poll));
+ getpid (), fds, nfds, vec_len (ldpw->vcl_poll));
- rv = libc_poll (ldp->libc_poll, vec_len (ldp->libc_poll), 0);
+ rv = libc_poll (ldpw->libc_poll, vec_len (ldpw->libc_poll), 0);
if (rv < 0)
goto done;
else
@@ -3412,11 +3452,11 @@ poll (struct pollfd *fds, nfds_t nfds, int timeout)
}
}
while ((wait_for_time == -1) ||
- (clib_time_now (&ldp->clib_time) < wait_for_time));
+ (clib_time_now (&ldpw->clib_time) < wait_for_time));
rv = 0;
done:
- vec_foreach (vp, ldp->vcl_poll)
+ vec_foreach (vp, ldpw->vcl_poll)
{
fds[vp->fds_ndx].fd = -fds[vp->fds_ndx].fd;
fds[vp->fds_ndx].revents = vp->revents;
@@ -3429,14 +3469,14 @@ done:
fds[vp->fds_ndx].revents |= POLLWRNORM;
#endif
}
- vec_reset_length (ldp->vcl_poll);
+ vec_reset_length (ldpw->vcl_poll);
- for (i = 0; i < vec_len (ldp->libc_poll); i++)
+ for (i = 0; i < vec_len (ldpw->libc_poll); i++)
{
- fds[ldp->libc_poll_idxs[i]].revents = ldp->libc_poll[i].revents;
+ fds[ldpw->libc_poll_idxs[i]].revents = ldpw->libc_poll[i].revents;
}
- vec_reset_length (ldp->libc_poll_idxs);
- vec_reset_length (ldp->libc_poll);
+ vec_reset_length (ldpw->libc_poll_idxs);
+ vec_reset_length (ldpw->libc_poll);
if (LDP_DEBUG > 3)
{
@@ -3453,7 +3493,7 @@ done:
{
clib_warning ("LDP<%d>: returning %d (0x%x): n_sids %u, "
"n_libc_fds %d", getpid (), rv, rv,
- vec_len (ldp->vcl_poll), vec_len (ldp->libc_poll));
+ vec_len (ldpw->vcl_poll), vec_len (ldpw->libc_poll));
for (i = 0; i < nfds; i++)
{
diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index b397058052c..589d57c3872 100644
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -3366,6 +3366,12 @@ vppcom_worker_register (void)
return VPPCOM_EEXIST;
}
+int
+vppcom_worker_index (void)
+{
+ return vcl_get_worker_index ();
+}
+
/*
* fd.io coding-style-patch-verification: ON
*
diff --git a/src/vcl/vppcom.h b/src/vcl/vppcom.h
index 5085e950af4..0c0b7ce45fd 100644
--- a/src/vcl/vppcom.h
+++ b/src/vcl/vppcom.h
@@ -279,6 +279,11 @@ extern int vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds,
*/
extern int vppcom_worker_register (void);
+/**
+ * Retrieve current worker index
+ */
+extern int vppcom_worker_index (void);
+
/* *INDENT-OFF* */
#ifdef __cplusplus
}