diff options
author | 2017-03-12 18:33:47 -0700 | |
---|---|---|
committer | 2017-03-12 18:33:47 -0700 | |
commit | 43be708bb2a7b3c7dce8cc25059be3fce7228d66 (patch) | |
tree | 82217258fbf81514d5bf13a73d6501eb8fbde363 /src/core/lib/iomgr | |
parent | 39a797387f1a7bbfd5cad235a90d1059bfddfdba (diff) | |
parent | 0b7bd20de4f0d219c399ef8c01c05026bf12da5d (diff) |
Merge remote-tracking branch 'upstream/master' into fix-flush-read
Diffstat (limited to 'src/core/lib/iomgr')
-rw-r--r-- | src/core/lib/iomgr/error.c | 422 | ||||
-rw-r--r-- | src/core/lib/iomgr/error.h | 11 | ||||
-rw-r--r-- | src/core/lib/iomgr/error_internal.h | 24 | ||||
-rw-r--r-- | src/core/lib/iomgr/sockaddr_utils.c | 12 | ||||
-rw-r--r-- | src/core/lib/iomgr/tcp_server_posix.c | 19 | ||||
-rw-r--r-- | src/core/lib/iomgr/udp_server.c | 6 | ||||
-rw-r--r-- | src/core/lib/iomgr/wakeup_fd_posix.h | 2 |
7 files changed, 339 insertions, 157 deletions
diff --git a/src/core/lib/iomgr/error.c b/src/core/lib/iomgr/error.c index dbe5b139f9..7cdbe30198 100644 --- a/src/core/lib/iomgr/error.c +++ b/src/core/lib/iomgr/error.c @@ -35,6 +35,7 @@ #include <string.h> +#include <grpc/slice.h> #include <grpc/status.h> #include <grpc/support/alloc.h> #include <grpc/support/log.h> @@ -47,46 +48,7 @@ #include "src/core/lib/iomgr/error_internal.h" #include "src/core/lib/profiling/timers.h" - -static void destroy_integer(void *key) {} - -static void *copy_integer(void *key) { return key; } - -static long compare_integers(void *key1, void *key2) { - return GPR_ICMP((uintptr_t)key1, (uintptr_t)key2); -} - -static void destroy_string(void *str) { gpr_free(str); } - -static void *copy_string(void *str) { return gpr_strdup(str); } - -static void destroy_err(void *err) { GRPC_ERROR_UNREF(err); } - -static void *copy_err(void *err) { return GRPC_ERROR_REF(err); } - -static void destroy_time(void *tm) { gpr_free(tm); } - -static gpr_timespec *box_time(gpr_timespec tm) { - gpr_timespec *out = gpr_malloc(sizeof(*out)); - *out = tm; - return out; -} - -static void *copy_time(void *tm) { return box_time(*(gpr_timespec *)tm); } - -static const gpr_avl_vtable avl_vtable_ints = {destroy_integer, copy_integer, - compare_integers, - destroy_integer, copy_integer}; - -static const gpr_avl_vtable avl_vtable_strs = {destroy_integer, copy_integer, - compare_integers, destroy_string, - copy_string}; - -static const gpr_avl_vtable avl_vtable_times = { - destroy_integer, copy_integer, compare_integers, destroy_time, copy_time}; - -static const gpr_avl_vtable avl_vtable_errs = { - destroy_integer, copy_integer, compare_integers, destroy_err, copy_err}; +#include "src/core/lib/slice/slice_internal.h" static const char *error_int_name(grpc_error_ints key) { switch (key) { @@ -120,6 +82,8 @@ static const char *error_int_name(grpc_error_ints key) { return "limit"; case GRPC_ERROR_INT_OCCURRED_DURING_WRITE: return "occurred_during_write"; + case GRPC_ERROR_INT_MAX: + GPR_UNREACHABLE_CODE(return "unknown"); } GPR_UNREACHABLE_CODE(return "unknown"); } @@ -150,6 +114,8 @@ static const char *error_str_name(grpc_error_strs key) { return "filename"; case GRPC_ERROR_STR_QUEUED_BUFFERS: return "queued_buffers"; + case GRPC_ERROR_STR_MAX: + GPR_UNREACHABLE_CODE(return "unknown"); } GPR_UNREACHABLE_CODE(return "unknown"); } @@ -158,6 +124,8 @@ static const char *error_time_name(grpc_error_times key) { switch (key) { case GRPC_ERROR_TIME_CREATED: return "created"; + case GRPC_ERROR_TIME_MAX: + GPR_UNREACHABLE_CODE(return "unknown"); } GPR_UNREACHABLE_CODE(return "unknown"); } @@ -184,12 +152,36 @@ grpc_error *grpc_error_ref(grpc_error *err) { } #endif +static void unref_errs(grpc_error *err) { + uint8_t slot = err->first_err; + while (slot != UINT8_MAX) { + grpc_linked_error *lerr = (grpc_linked_error *)(err->arena + slot); + GRPC_ERROR_UNREF(lerr->err); + GPR_ASSERT(err->last_err == slot ? lerr->next == UINT8_MAX + : lerr->next != UINT8_MAX); + slot = lerr->next; + } +} + +static void unref_slice(grpc_slice slice) { + grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; + grpc_slice_unref_internal(&exec_ctx, slice); + grpc_exec_ctx_finish(&exec_ctx); +} + +static void unref_strs(grpc_error *err) { + for (size_t which = 0; which < GRPC_ERROR_STR_MAX; ++which) { + uint8_t slot = err->strs[which]; + if (slot != UINT8_MAX) { + unref_slice(*(grpc_slice *)(err->arena + slot)); + } + } +} + static void error_destroy(grpc_error *err) { GPR_ASSERT(!grpc_error_is_special(err)); - gpr_avl_unref(err->ints); - gpr_avl_unref(err->strs); - gpr_avl_unref(err->errs); - gpr_avl_unref(err->times); + unref_errs(err); + unref_strs(err); gpr_free((void *)gpr_atm_acq_load(&err->error_string)); gpr_free(err); } @@ -213,67 +205,189 @@ void grpc_error_unref(grpc_error *err) { } #endif +static uint8_t get_placement(grpc_error **err, size_t size) { + GPR_ASSERT(*err); + uint8_t slots = (uint8_t)(size / sizeof(intptr_t)); + if ((*err)->arena_size + slots > (*err)->arena_capacity) { + (*err)->arena_capacity = (uint8_t)(3 * (*err)->arena_capacity / 2); + *err = gpr_realloc( + *err, sizeof(grpc_error) + (*err)->arena_capacity * sizeof(intptr_t)); + } + uint8_t placement = (*err)->arena_size; + (*err)->arena_size = (uint8_t)((*err)->arena_size + slots); + return placement; +} + +static void internal_set_int(grpc_error **err, grpc_error_ints which, + intptr_t value) { + // GPR_ASSERT((*err)->ints[which] == UINT8_MAX); // TODO, enforce this + uint8_t slot = (*err)->ints[which]; + if (slot == UINT8_MAX) { + slot = get_placement(err, sizeof(value)); + } + (*err)->ints[which] = slot; + (*err)->arena[slot] = value; +} + +static void internal_set_str(grpc_error **err, grpc_error_strs which, + grpc_slice value) { + // GPR_ASSERT((*err)->strs[which] == UINT8_MAX); // TODO, enforce this + uint8_t slot = (*err)->strs[which]; + if (slot == UINT8_MAX) { + slot = get_placement(err, sizeof(value)); + } else { + unref_slice(*(grpc_slice *)((*err)->arena + slot)); + } + (*err)->strs[which] = slot; + memcpy((*err)->arena + slot, &value, sizeof(value)); +} + +static void internal_set_time(grpc_error **err, grpc_error_times which, + gpr_timespec value) { + // GPR_ASSERT((*err)->times[which] == UINT8_MAX); // TODO, enforce this + uint8_t slot = (*err)->times[which]; + if (slot == UINT8_MAX) { + slot = get_placement(err, sizeof(value)); + } + (*err)->times[which] = slot; + memcpy((*err)->arena + slot, &value, sizeof(value)); +} + +static void internal_add_error(grpc_error **err, grpc_error *new) { + grpc_linked_error new_last = {new, UINT8_MAX}; + uint8_t slot = get_placement(err, sizeof(grpc_linked_error)); + if ((*err)->first_err == UINT8_MAX) { + GPR_ASSERT((*err)->last_err == UINT8_MAX); + (*err)->last_err = slot; + (*err)->first_err = slot; + } else { + GPR_ASSERT((*err)->last_err != UINT8_MAX); + grpc_linked_error *old_last = + (grpc_linked_error *)((*err)->arena + (*err)->last_err); + old_last->next = slot; + (*err)->last_err = slot; + } + memcpy((*err)->arena + slot, &new_last, sizeof(grpc_linked_error)); +} + +#define SLOTS_PER_INT (sizeof(intptr_t) / sizeof(intptr_t)) +#define SLOTS_PER_STR (sizeof(grpc_slice) / sizeof(intptr_t)) +#define SLOTS_PER_TIME (sizeof(gpr_timespec) / sizeof(intptr_t)) +#define SLOTS_PER_LINKED_ERROR (sizeof(grpc_linked_error) / sizeof(intptr_t)) + +// size of storing one int and two slices and a timespec. For line, desc, file, +// and time created +#define DEFAULT_ERROR_CAPACITY \ + (SLOTS_PER_INT + (SLOTS_PER_STR * 2) + SLOTS_PER_TIME) + +// It is very common to include and extra int and string in an error +#define SURPLUS_CAPACITY (2 * SLOTS_PER_INT + SLOTS_PER_TIME) + grpc_error *grpc_error_create(const char *file, int line, const char *desc, grpc_error **referencing, size_t num_referencing) { GPR_TIMER_BEGIN("grpc_error_create", 0); - grpc_error *err = gpr_malloc(sizeof(*err)); + uint8_t initial_arena_capacity = (uint8_t)( + DEFAULT_ERROR_CAPACITY + + (uint8_t)(num_referencing * SLOTS_PER_LINKED_ERROR) + SURPLUS_CAPACITY); + grpc_error *err = + gpr_malloc(sizeof(*err) + initial_arena_capacity * sizeof(intptr_t)); if (err == NULL) { // TODO(ctiller): make gpr_malloc return NULL return GRPC_ERROR_OOM; } #ifdef GRPC_ERROR_REFCOUNT_DEBUG gpr_log(GPR_DEBUG, "%p create [%s:%d]", err, file, line); #endif - err->ints = gpr_avl_add(gpr_avl_create(&avl_vtable_ints), - (void *)(uintptr_t)GRPC_ERROR_INT_FILE_LINE, - (void *)(uintptr_t)line); - err->strs = gpr_avl_add( - gpr_avl_add(gpr_avl_create(&avl_vtable_strs), - (void *)(uintptr_t)GRPC_ERROR_STR_FILE, gpr_strdup(file)), - (void *)(uintptr_t)GRPC_ERROR_STR_DESCRIPTION, gpr_strdup(desc)); - err->errs = gpr_avl_create(&avl_vtable_errs); - err->next_err = 0; - for (size_t i = 0; i < num_referencing; i++) { + + err->arena_size = 0; + err->arena_capacity = initial_arena_capacity; + err->first_err = UINT8_MAX; + err->last_err = UINT8_MAX; + + memset(err->ints, UINT8_MAX, GRPC_ERROR_INT_MAX); + memset(err->strs, UINT8_MAX, GRPC_ERROR_STR_MAX); + memset(err->times, UINT8_MAX, GRPC_ERROR_TIME_MAX); + + internal_set_int(&err, GRPC_ERROR_INT_FILE_LINE, line); + internal_set_str(&err, GRPC_ERROR_STR_FILE, + grpc_slice_from_static_string(file)); + internal_set_str( + &err, GRPC_ERROR_STR_DESCRIPTION, + grpc_slice_from_copied_buffer( + desc, + strlen(desc) + + 1)); // TODO, pull this up. // TODO(ncteisen), pull this up. + + for (size_t i = 0; i < num_referencing; ++i) { if (referencing[i] == GRPC_ERROR_NONE) continue; - err->errs = gpr_avl_add(err->errs, (void *)(err->next_err++), - GRPC_ERROR_REF(referencing[i])); + internal_add_error( + &err, + GRPC_ERROR_REF( + referencing[i])); // TODO(ncteisen), change ownership semantics } - err->times = gpr_avl_add(gpr_avl_create(&avl_vtable_times), - (void *)(uintptr_t)GRPC_ERROR_TIME_CREATED, - box_time(gpr_now(GPR_CLOCK_REALTIME))); + + internal_set_time(&err, GRPC_ERROR_TIME_CREATED, gpr_now(GPR_CLOCK_REALTIME)); + gpr_atm_no_barrier_store(&err->error_string, 0); gpr_ref_init(&err->refs, 1); GPR_TIMER_END("grpc_error_create", 0); return err; } +static void ref_strs(grpc_error *err) { + for (size_t i = 0; i < GRPC_ERROR_STR_MAX; ++i) { + uint8_t slot = err->strs[i]; + if (slot != UINT8_MAX) { + grpc_slice_ref_internal(*(grpc_slice *)(err->arena + slot)); + } + } +} + +static void ref_errs(grpc_error *err) { + uint8_t slot = err->first_err; + while (slot != UINT8_MAX) { + grpc_linked_error *lerr = (grpc_linked_error *)(err->arena + slot); + GRPC_ERROR_REF(lerr->err); + slot = lerr->next; + } +} + static grpc_error *copy_error_and_unref(grpc_error *in) { GPR_TIMER_BEGIN("copy_error_and_unref", 0); grpc_error *out; if (grpc_error_is_special(in)) { - if (in == GRPC_ERROR_NONE) - out = grpc_error_set_int(GRPC_ERROR_CREATE("no error"), - GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_OK); - else if (in == GRPC_ERROR_OOM) - out = GRPC_ERROR_CREATE("oom"); - else if (in == GRPC_ERROR_CANCELLED) - out = - grpc_error_set_int(GRPC_ERROR_CREATE("cancelled"), - GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_CANCELLED); - else - out = GRPC_ERROR_CREATE("unknown"); + out = GRPC_ERROR_CREATE("unknown"); + if (in == GRPC_ERROR_NONE) { + internal_set_str(&out, GRPC_ERROR_STR_DESCRIPTION, + grpc_slice_from_static_string("no error")); + internal_set_int(&out, GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_OK); + } else if (in == GRPC_ERROR_OOM) { + internal_set_str(&out, GRPC_ERROR_STR_DESCRIPTION, + grpc_slice_from_static_string("oom")); + } else if (in == GRPC_ERROR_CANCELLED) { + internal_set_str(&out, GRPC_ERROR_STR_DESCRIPTION, + grpc_slice_from_static_string("cancelled")); + internal_set_int(&out, GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_CANCELLED); + } + } else if (gpr_ref_is_unique(&in->refs)) { + out = in; } else { - out = gpr_malloc(sizeof(*out)); + uint8_t new_arena_capacity = in->arena_capacity; + // the returned err will be added to, so we ensure this is room to avoid + // unneeded allocations. + if (in->arena_capacity - in->arena_size < (uint8_t)SLOTS_PER_STR) { + new_arena_capacity = (uint8_t)(3 * new_arena_capacity / 2); + } + out = gpr_malloc(sizeof(*in) + new_arena_capacity * sizeof(intptr_t)); #ifdef GRPC_ERROR_REFCOUNT_DEBUG gpr_log(GPR_DEBUG, "%p create copying %p", out, in); #endif - out->ints = gpr_avl_ref(in->ints); - out->strs = gpr_avl_ref(in->strs); - out->errs = gpr_avl_ref(in->errs); - out->times = gpr_avl_ref(in->times); + memcpy(out, in, sizeof(*in) + in->arena_size * sizeof(intptr_t)); + out->arena_capacity = new_arena_capacity; gpr_atm_no_barrier_store(&out->error_string, 0); - out->next_err = in->next_err; gpr_ref_init(&out->refs, 1); + ref_strs(out); + ref_errs(out); GRPC_ERROR_UNREF(in); } GPR_TIMER_END("copy_error_and_unref", 0); @@ -284,7 +398,7 @@ grpc_error *grpc_error_set_int(grpc_error *src, grpc_error_ints which, intptr_t value) { GPR_TIMER_BEGIN("grpc_error_set_int", 0); grpc_error *new = copy_error_and_unref(src); - new->ints = gpr_avl_add(new->ints, (void *)(uintptr_t)which, (void *)value); + internal_set_int(&new, which, value); GPR_TIMER_END("grpc_error_set_int", 0); return new; } @@ -302,7 +416,6 @@ static special_error_status_map error_status_map[] = { bool grpc_error_get_int(grpc_error *err, grpc_error_ints which, intptr_t *p) { GPR_TIMER_BEGIN("grpc_error_get_int", 0); - void *pp; if (grpc_error_is_special(err)) { if (which == GRPC_ERROR_INT_GRPC_STATUS) { for (size_t i = 0; i < GPR_ARRAY_SIZE(error_status_map); i++) { @@ -316,8 +429,9 @@ bool grpc_error_get_int(grpc_error *err, grpc_error_ints which, intptr_t *p) { GPR_TIMER_END("grpc_error_get_int", 0); return false; } - if (gpr_avl_maybe_get(err->ints, (void *)(uintptr_t)which, &pp)) { - if (p != NULL) *p = (intptr_t)pp; + uint8_t slot = err->ints[which]; + if (slot != UINT8_MAX) { + if (p != NULL) *p = err->arena[slot]; GPR_TIMER_END("grpc_error_get_int", 0); return true; } @@ -329,8 +443,9 @@ grpc_error *grpc_error_set_str(grpc_error *src, grpc_error_strs which, const char *value) { GPR_TIMER_BEGIN("grpc_error_set_str", 0); grpc_error *new = copy_error_and_unref(src); - new->strs = - gpr_avl_add(new->strs, (void *)(uintptr_t)which, gpr_strdup(value)); + internal_set_str(&new, which, + grpc_slice_from_copied_buffer( + value, strlen(value) + 1)); // TODO, pull this up. GPR_TIMER_END("grpc_error_set_str", 0); return new; } @@ -346,13 +461,19 @@ const char *grpc_error_get_str(grpc_error *err, grpc_error_strs which) { } return NULL; } - return gpr_avl_get(err->strs, (void *)(uintptr_t)which); + uint8_t slot = err->strs[which]; + if (slot != UINT8_MAX) { + return (const char *)GRPC_SLICE_START_PTR( + *(grpc_slice *)(err->arena + slot)); + } else { + return NULL; + } } grpc_error *grpc_error_add_child(grpc_error *src, grpc_error *child) { GPR_TIMER_BEGIN("grpc_error_add_child", 0); grpc_error *new = copy_error_and_unref(src); - new->errs = gpr_avl_add(new->errs, (void *)(new->next_err++), child); + internal_add_error(&new, child); GPR_TIMER_END("grpc_error_add_child", 0); return new; } @@ -372,42 +493,6 @@ typedef struct { size_t cap_kvs; } kv_pairs; -static void append_kv(kv_pairs *kvs, char *key, char *value) { - if (kvs->num_kvs == kvs->cap_kvs) { - kvs->cap_kvs = GPR_MAX(3 * kvs->cap_kvs / 2, 4); - kvs->kvs = gpr_realloc(kvs->kvs, sizeof(*kvs->kvs) * kvs->cap_kvs); - } - kvs->kvs[kvs->num_kvs].key = key; - kvs->kvs[kvs->num_kvs].value = value; - kvs->num_kvs++; -} - -static void collect_kvs(gpr_avl_node *node, char *key(void *k), - char *fmt(void *v), kv_pairs *kvs) { - if (node == NULL) return; - append_kv(kvs, key(node->key), fmt(node->value)); - collect_kvs(node->left, key, fmt, kvs); - collect_kvs(node->right, key, fmt, kvs); -} - -static char *key_int(void *p) { - return gpr_strdup(error_int_name((grpc_error_ints)(uintptr_t)p)); -} - -static char *key_str(void *p) { - return gpr_strdup(error_str_name((grpc_error_strs)(uintptr_t)p)); -} - -static char *key_time(void *p) { - return gpr_strdup(error_time_name((grpc_error_times)(uintptr_t)p)); -} - -static char *fmt_int(void *p) { - char *s; - gpr_asprintf(&s, "%" PRIdPTR, (intptr_t)p); - return s; -} - static void append_chr(char c, char **s, size_t *sz, size_t *cap) { if (*sz == *cap) { *cap = GPR_MAX(8, 3 * *cap / 2); @@ -459,6 +544,40 @@ static void append_esc_str(const char *str, char **s, size_t *sz, size_t *cap) { append_chr('"', s, sz, cap); } +static void append_kv(kv_pairs *kvs, char *key, char *value) { + if (kvs->num_kvs == kvs->cap_kvs) { + kvs->cap_kvs = GPR_MAX(3 * kvs->cap_kvs / 2, 4); + kvs->kvs = gpr_realloc(kvs->kvs, sizeof(*kvs->kvs) * kvs->cap_kvs); + } + kvs->kvs[kvs->num_kvs].key = key; + kvs->kvs[kvs->num_kvs].value = value; + kvs->num_kvs++; +} + +static char *key_int(grpc_error_ints which) { + return gpr_strdup(error_int_name(which)); +} + +static char *fmt_int(intptr_t p) { + char *s; + gpr_asprintf(&s, "%" PRIdPTR, p); + return s; +} + +static void collect_ints_kvs(grpc_error *err, kv_pairs *kvs) { + for (size_t which = 0; which < GRPC_ERROR_INT_MAX; ++which) { + uint8_t slot = err->ints[which]; + if (slot != UINT8_MAX) { + append_kv(kvs, key_int((grpc_error_ints)which), + fmt_int(err->arena[slot])); + } + } +} + +static char *key_str(grpc_error_strs which) { + return gpr_strdup(error_str_name(which)); +} + static char *fmt_str(void *p) { char *s = NULL; size_t sz = 0; @@ -468,8 +587,22 @@ static char *fmt_str(void *p) { return s; } -static char *fmt_time(void *p) { - gpr_timespec tm = *(gpr_timespec *)p; +static void collect_strs_kvs(grpc_error *err, kv_pairs *kvs) { + for (size_t which = 0; which < GRPC_ERROR_STR_MAX; ++which) { + uint8_t slot = err->strs[which]; + if (slot != UINT8_MAX) { + append_kv( + kvs, key_str((grpc_error_strs)which), + fmt_str(GRPC_SLICE_START_PTR(*(grpc_slice *)(err->arena + slot)))); + } + } +} + +static char *key_time(grpc_error_times which) { + return gpr_strdup(error_time_name(which)); +} + +static char *fmt_time(gpr_timespec tm) { char *out; char *pfx = "!!"; switch (tm.clock_type) { @@ -490,24 +623,37 @@ static char *fmt_time(void *p) { return out; } -static void add_errs(gpr_avl_node *n, char **s, size_t *sz, size_t *cap, - bool *first) { - if (n == NULL) return; - add_errs(n->left, s, sz, cap, first); - if (!*first) append_chr(',', s, sz, cap); - *first = false; - const char *e = grpc_error_string(n->value); - append_str(e, s, sz, cap); - add_errs(n->right, s, sz, cap, first); +static void collect_times_kvs(grpc_error *err, kv_pairs *kvs) { + for (size_t which = 0; which < GRPC_ERROR_TIME_MAX; ++which) { + uint8_t slot = err->times[which]; + if (slot != UINT8_MAX) { + append_kv(kvs, key_time((grpc_error_times)which), + fmt_time(*(gpr_timespec *)(err->arena + slot))); + } + } +} + +static void add_errs(grpc_error *err, char **s, size_t *sz, size_t *cap) { + uint8_t slot = err->first_err; + bool first = true; + while (slot != UINT8_MAX) { + grpc_linked_error *lerr = (grpc_linked_error *)(err->arena + slot); + if (!first) append_chr(',', s, sz, cap); + first = false; + const char *e = grpc_error_string(lerr->err); + append_str(e, s, sz, cap); + GPR_ASSERT(err->last_err == slot ? lerr->next == UINT8_MAX + : lerr->next != UINT8_MAX); + slot = lerr->next; + } } static char *errs_string(grpc_error *err) { char *s = NULL; size_t sz = 0; size_t cap = 0; - bool first = true; append_chr('[', &s, &sz, &cap); - add_errs(err->errs.root, &s, &sz, &cap, &first); + add_errs(err, &s, &sz, &cap); append_chr(']', &s, &sz, &cap); append_chr(0, &s, &sz, &cap); return s; @@ -555,10 +701,10 @@ const char *grpc_error_string(grpc_error *err) { kv_pairs kvs; memset(&kvs, 0, sizeof(kvs)); - collect_kvs(err->ints.root, key_int, fmt_int, &kvs); - collect_kvs(err->strs.root, key_str, fmt_str, &kvs); - collect_kvs(err->times.root, key_time, fmt_time, &kvs); - if (!gpr_avl_is_empty(err->errs)) { + collect_ints_kvs(err, &kvs); + collect_strs_kvs(err, &kvs); + collect_times_kvs(err, &kvs); + if (err->first_err != UINT8_MAX) { append_kv(&kvs, gpr_strdup("referenced_errors"), errs_string(err)); } diff --git a/src/core/lib/iomgr/error.h b/src/core/lib/iomgr/error.h index 2613512acb..eb953947ae 100644 --- a/src/core/lib/iomgr/error.h +++ b/src/core/lib/iomgr/error.h @@ -102,6 +102,9 @@ typedef enum { GRPC_ERROR_INT_LIMIT, /// chttp2: did the error occur while a write was in progress GRPC_ERROR_INT_OCCURRED_DURING_WRITE, + + /// Must always be last + GRPC_ERROR_INT_MAX, } grpc_error_ints; typedef enum { @@ -129,11 +132,17 @@ typedef enum { GRPC_ERROR_STR_KEY, /// value associated with the error GRPC_ERROR_STR_VALUE, + + /// Must always be last + GRPC_ERROR_STR_MAX, } grpc_error_strs; typedef enum { /// timestamp of error creation GRPC_ERROR_TIME_CREATED, + + /// Must always be last + GRPC_ERROR_TIME_MAX, } grpc_error_times; /// The following "special" errors can be propagated without allocating memory. @@ -184,8 +193,6 @@ void grpc_error_unref(grpc_error *err); grpc_error *grpc_error_set_int(grpc_error *src, grpc_error_ints which, intptr_t value) GRPC_MUST_USE_RESULT; bool grpc_error_get_int(grpc_error *error, grpc_error_ints which, intptr_t *p); -grpc_error *grpc_error_set_time(grpc_error *src, grpc_error_times which, - gpr_timespec value) GRPC_MUST_USE_RESULT; grpc_error *grpc_error_set_str(grpc_error *src, grpc_error_strs which, const char *value) GRPC_MUST_USE_RESULT; /// Returns NULL if the specified string is not set. diff --git a/src/core/lib/iomgr/error_internal.h b/src/core/lib/iomgr/error_internal.h index 1c89ead4ed..fb4814e41f 100644 --- a/src/core/lib/iomgr/error_internal.h +++ b/src/core/lib/iomgr/error_internal.h @@ -35,18 +35,28 @@ #define GRPC_CORE_LIB_IOMGR_ERROR_INTERNAL_H #include <inttypes.h> -#include <stdbool.h> +#include <stdbool.h> // TODO, do we need this? -#include <grpc/support/avl.h> +#include <grpc/support/sync.h> + +typedef struct grpc_linked_error grpc_linked_error; + +struct grpc_linked_error { + grpc_error *err; + uint8_t next; +}; struct grpc_error { gpr_refcount refs; - gpr_avl ints; - gpr_avl strs; - gpr_avl times; - gpr_avl errs; - uintptr_t next_err; + uint8_t ints[GRPC_ERROR_INT_MAX]; + uint8_t strs[GRPC_ERROR_STR_MAX]; + uint8_t times[GRPC_ERROR_TIME_MAX]; + uint8_t first_err; + uint8_t last_err; gpr_atm error_string; + uint8_t arena_size; + uint8_t arena_capacity; + intptr_t arena[0]; }; bool grpc_error_is_special(grpc_error *err); diff --git a/src/core/lib/iomgr/sockaddr_utils.c b/src/core/lib/iomgr/sockaddr_utils.c index ffa62cb53c..9d2732666b 100644 --- a/src/core/lib/iomgr/sockaddr_utils.c +++ b/src/core/lib/iomgr/sockaddr_utils.c @@ -162,6 +162,7 @@ int grpc_sockaddr_to_string(char **out, char ntop_buf[INET6_ADDRSTRLEN]; const void *ip = NULL; int port; + uint32_t sin6_scope_id = 0; int ret; *out = NULL; @@ -177,10 +178,19 @@ int grpc_sockaddr_to_string(char **out, const struct sockaddr_in6 *addr6 = (const struct sockaddr_in6 *)addr; ip = &addr6->sin6_addr; port = ntohs(addr6->sin6_port); + sin6_scope_id = addr6->sin6_scope_id; } if (ip != NULL && grpc_inet_ntop(addr->sa_family, ip, ntop_buf, sizeof(ntop_buf)) != NULL) { - ret = gpr_join_host_port(out, ntop_buf, port); + if (sin6_scope_id != 0) { + char *host_with_scope; + /* Enclose sin6_scope_id with the format defined in RFC 6784 section 2. */ + gpr_asprintf(&host_with_scope, "%s%%25%" PRIu32, ntop_buf, sin6_scope_id); + ret = gpr_join_host_port(out, host_with_scope, port); + gpr_free(host_with_scope); + } else { + ret = gpr_join_host_port(out, ntop_buf, port); + } } else { ret = gpr_asprintf(out, "(sockaddr family=%d)", addr->sa_family); } diff --git a/src/core/lib/iomgr/tcp_server_posix.c b/src/core/lib/iomgr/tcp_server_posix.c index 36f878fdd4..5f286a6723 100644 --- a/src/core/lib/iomgr/tcp_server_posix.c +++ b/src/core/lib/iomgr/tcp_server_posix.c @@ -114,6 +114,8 @@ struct grpc_tcp_server { /* is this server shutting down? */ bool shutdown; + /* have listeners been shutdown? */ + bool shutdown_listeners; /* use SO_REUSEPORT */ bool so_reuseport; /* expand wildcard addresses to a list of all local addresses */ @@ -161,7 +163,7 @@ grpc_error *grpc_tcp_server_create(grpc_exec_ctx *exec_ctx, grpc_tcp_server **server) { gpr_once_init(&check_init, init); - grpc_tcp_server *s = gpr_malloc(sizeof(grpc_tcp_server)); + grpc_tcp_server *s = gpr_zalloc(sizeof(grpc_tcp_server)); s->so_reuseport = has_so_reuseport; s->resource_quota = grpc_resource_quota_create(NULL); s->expand_wildcard_addrs = false; @@ -422,7 +424,14 @@ static void on_read(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *err) { grpc_fd_notify_on_read(exec_ctx, sp->emfd, &sp->read_closure); return; default: - gpr_log(GPR_ERROR, "Failed accept4: %s", strerror(errno)); + gpr_mu_lock(&sp->server->mu); + if (!sp->server->shutdown_listeners) { + gpr_log(GPR_ERROR, "Failed accept4: %s", strerror(errno)); + } else { + /* if we have shutdown listeners, accept4 could fail, and we + needn't notify users */ + } + gpr_mu_unlock(&sp->server->mu); goto error; } } @@ -438,11 +447,6 @@ static void on_read(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *err) { grpc_fd *fdobj = grpc_fd_create(fd, name); - if (read_notifier_pollset == NULL) { - gpr_log(GPR_ERROR, "Read notifier pollset is not set on the fd"); - goto error; - } - grpc_pollset_add_fd(exec_ctx, read_notifier_pollset, fdobj); // Create acceptor. @@ -941,6 +945,7 @@ void grpc_tcp_server_unref(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s) { void grpc_tcp_server_shutdown_listeners(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s) { gpr_mu_lock(&s->mu); + s->shutdown_listeners = true; /* shutdown all fd's */ if (s->active_ports) { grpc_tcp_listener *sp; diff --git a/src/core/lib/iomgr/udp_server.c b/src/core/lib/iomgr/udp_server.c index 2a1c8d39fa..d1bcd89af1 100644 --- a/src/core/lib/iomgr/udp_server.c +++ b/src/core/lib/iomgr/udp_server.c @@ -485,7 +485,11 @@ void grpc_udp_server_start(grpc_exec_ctx *exec_ctx, grpc_udp_server *s, grpc_schedule_on_exec_ctx); grpc_fd_notify_on_write(exec_ctx, sp->emfd, &sp->write_closure); - s->active_ports++; + /* Registered for both read and write callbacks: increment active_ports + * twice to account for this, and delay free-ing of memory until both + * on_read and on_write have fired. */ + s->active_ports += 2; + sp = sp->next; } diff --git a/src/core/lib/iomgr/wakeup_fd_posix.h b/src/core/lib/iomgr/wakeup_fd_posix.h index 71d32d97ba..c8dd242c75 100644 --- a/src/core/lib/iomgr/wakeup_fd_posix.h +++ b/src/core/lib/iomgr/wakeup_fd_posix.h @@ -46,7 +46,7 @@ * * Setup: * 1. Before calling anything, call global_init() at least once. - * 1. Call grpc_wakeup_fd_create() to get a wakeup_fd. + * 1. Call grpc_wakeup_fd_init() to set up a wakeup_fd. * 2. Add the result of GRPC_WAKEUP_FD_FD to the set of monitored file * descriptors for the poll() style API you are using. Monitor the file * descriptor for readability. |