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3f65316312
Some APIs(especially that created thread) are hard to test with current fault injection logic. Introduce bitmask so that the fault injection can be enabled at any arbitrary iteration. Bug 200580790 Change-Id: I990ba442d2c1dbd9f44d565bd2ce0196f8653257 Signed-off-by: shashank singh <shashsingh@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2268729 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Rajesh Devaraj <rdevaraj@nvidia.com> Tested-by: Rajesh Devaraj <rdevaraj@nvidia.com> Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
/*
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* Copyright (c) 2018-2020, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <stdlib.h>
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#include <stdbool.h>
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#include <nvgpu/posix/posix-fault-injection.h>
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_Thread_local struct nvgpu_posix_fault_inj_container *thread_fi;
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void nvgpu_posix_init_fault_injection(struct nvgpu_posix_fault_inj_container *c)
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{
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thread_fi = c;
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}
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struct nvgpu_posix_fault_inj_container
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*nvgpu_posix_fault_injection_get_container(void)
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{
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return thread_fi;
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}
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void nvgpu_posix_enable_fault_injection(struct nvgpu_posix_fault_inj *fi,
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bool enable, unsigned int number)
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{
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if (number == 0U) {
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fi->enabled = enable;
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fi->counter = 0U;
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} else {
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fi->enabled = !enable;
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fi->counter = number;
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}
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}
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bool nvgpu_posix_is_fault_injection_triggered(struct nvgpu_posix_fault_inj *fi)
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{
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return fi->enabled;
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}
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bool nvgpu_posix_is_fault_injection_cntr_set(struct nvgpu_posix_fault_inj *fi)
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{
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return (fi->counter > 0U);
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}
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void nvgpu_posix_set_fault_injection_bitmask(struct nvgpu_posix_fault_inj *fi,
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unsigned long *bitmask, unsigned int number)
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{
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/* TODO check for input validity */
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fi->bitmask = *bitmask;
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fi->counter = number;
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}
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void nvgpu_posix_reset_fault_injection_bitmask(struct nvgpu_posix_fault_inj *fi)
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{
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fi->bitmask = 0UL;
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fi->counter = 0U;
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}
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/*
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* Return status of fault injection.
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* Decrement fault injection count for each call.
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*/
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bool nvgpu_posix_fault_injection_handle_call(struct nvgpu_posix_fault_inj *fi)
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{
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bool current_state = fi->enabled;
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if (fi->bitmask != 0UL && fi->counter > 0U &&
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fi->counter <= sizeof(fi->bitmask) * 8) {
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fi->counter--;
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if ((1UL << fi->counter) & fi->bitmask) {
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return true;
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} else {
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return false;
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}
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}
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if (fi->counter > 0U) {
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fi->counter--;
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if (fi->counter == 0U) {
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/* for next time */
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fi->enabled = !fi->enabled;
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}
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}
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return current_state;
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}
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