diff options
Diffstat (limited to 'src/spdk/lib/trace/trace_flags.c')
| -rw-r--r-- | src/spdk/lib/trace/trace_flags.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/src/spdk/lib/trace/trace_flags.c b/src/spdk/lib/trace/trace_flags.c new file mode 100644 index 00000000..69ca0bdf --- /dev/null +++ b/src/spdk/lib/trace/trace_flags.c @@ -0,0 +1,179 @@ +/*- + * BSD LICENSE + * + * Copyright (c) Intel Corporation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "spdk/stdinc.h" + +#include "spdk/env.h" +#include "spdk/trace.h" +#include "spdk/log.h" + +struct spdk_trace_flags *g_trace_flags = NULL; +static struct spdk_trace_register_fn *g_reg_fn_head = NULL; + +uint64_t +spdk_trace_get_tpoint_mask(uint32_t group_id) +{ + if (group_id >= SPDK_TRACE_MAX_GROUP_ID) { + SPDK_ERRLOG("%s: invalid group ID %d\n", __func__, group_id); + return 0ULL; + } + + return g_trace_flags->tpoint_mask[group_id]; +} + +void +spdk_trace_set_tpoints(uint32_t group_id, uint64_t tpoint_mask) +{ + if (group_id >= SPDK_TRACE_MAX_GROUP_ID) { + SPDK_ERRLOG("%s: invalid group ID %d\n", __func__, group_id); + return; + } + + g_trace_flags->tpoint_mask[group_id] |= tpoint_mask; +} + +void +spdk_trace_clear_tpoints(uint32_t group_id, uint64_t tpoint_mask) +{ + if (group_id >= SPDK_TRACE_MAX_GROUP_ID) { + SPDK_ERRLOG("%s: invalid group ID %d\n", __func__, group_id); + return; + } + + g_trace_flags->tpoint_mask[group_id] &= ~tpoint_mask; +} + +uint64_t +spdk_trace_get_tpoint_group_mask(void) +{ + uint64_t mask = 0x0; + int i; + + for (i = 0; i < SPDK_TRACE_MAX_GROUP_ID; i++) { + if (spdk_trace_get_tpoint_mask(i) != 0) { + mask |= (1ULL << i); + } + } + + return mask; +} + +void +spdk_trace_set_tpoint_group_mask(uint64_t tpoint_group_mask) +{ + int i; + + for (i = 0; i < SPDK_TRACE_MAX_GROUP_ID; i++) { + if (tpoint_group_mask & (1ULL << i)) { + spdk_trace_set_tpoints(i, -1ULL); + } + } +} + +void +spdk_trace_register_owner(uint8_t type, char id_prefix) +{ + struct spdk_trace_owner *owner; + + assert(type != OWNER_NONE); + + /* 'owner' has 256 entries and since 'type' is a uint8_t, it + * can't overrun the array. + */ + owner = &g_trace_flags->owner[type]; + assert(owner->type == 0); + + owner->type = type; + owner->id_prefix = id_prefix; +} + +void +spdk_trace_register_object(uint8_t type, char id_prefix) +{ + struct spdk_trace_object *object; + + assert(type != OBJECT_NONE); + + /* 'object' has 256 entries and since 'type' is a uint8_t, it + * can't overrun the array. + */ + object = &g_trace_flags->object[type]; + assert(object->type == 0); + + object->type = type; + object->id_prefix = id_prefix; +} + +void +spdk_trace_register_description(const char *name, const char *short_name, + uint16_t tpoint_id, uint8_t owner_type, + uint8_t object_type, uint8_t new_object, + uint8_t arg1_is_ptr, const char *arg1_name) +{ + struct spdk_trace_tpoint *tpoint; + + assert(tpoint_id != 0); + assert(tpoint_id < SPDK_TRACE_MAX_TPOINT_ID); + + tpoint = &g_trace_flags->tpoint[tpoint_id]; + assert(tpoint->tpoint_id == 0); + + snprintf(tpoint->name, sizeof(tpoint->name), "%s", name); + snprintf(tpoint->short_name, sizeof(tpoint->short_name), "%s", short_name); + tpoint->tpoint_id = tpoint_id; + tpoint->object_type = object_type; + tpoint->owner_type = owner_type; + tpoint->new_object = new_object; + tpoint->arg1_is_ptr = arg1_is_ptr; + snprintf(tpoint->arg1_name, sizeof(tpoint->arg1_name), "%s", arg1_name); +} + +void +spdk_trace_add_register_fn(struct spdk_trace_register_fn *reg_fn) +{ + reg_fn->next = g_reg_fn_head; + g_reg_fn_head = reg_fn; +} + + +void +spdk_trace_flags_init(void) +{ + struct spdk_trace_register_fn *reg_fn; + + reg_fn = g_reg_fn_head; + while (reg_fn) { + reg_fn->reg_fn(); + reg_fn = reg_fn->next; + } +} |