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Workqueue: interface, test, and posix implementation
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| /* | ||
| * | ||
| * Copyright 2015, Google Inc. | ||
| * 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 Google Inc. 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. | ||
| * | ||
| */ | ||
|
|
||
| #ifndef GRPC_INTERNAL_CORE_IOMGR_WORKQUEUE_H | ||
| #define GRPC_INTERNAL_CORE_IOMGR_WORKQUEUE_H | ||
|
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| #include "src/core/iomgr/iomgr.h" | ||
| #include "src/core/iomgr/pollset.h" | ||
|
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| #ifdef GPR_POSIX_SOCKET | ||
| #include "src/core/iomgr/workqueue_posix.h" | ||
| #endif | ||
|
|
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| #ifdef GPR_WIN32 | ||
| #include "src/core/iomgr/workqueue_windows.h" | ||
| #endif | ||
|
|
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| /** A workqueue represents a list of work to be executed asynchronously. */ | ||
| struct grpc_workqueue; | ||
| typedef struct grpc_workqueue grpc_workqueue; | ||
|
|
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| /** Create a work queue */ | ||
| grpc_workqueue *grpc_workqueue_create(void); | ||
|
|
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| void grpc_workqueue_ref(grpc_workqueue *workqueue); | ||
| void grpc_workqueue_unref(grpc_workqueue *workqueue); | ||
|
|
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| /** Bind this workqueue to a pollset */ | ||
| void grpc_workqueue_add_to_pollset(grpc_workqueue *workqueue, | ||
| grpc_pollset *pollset); | ||
|
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| /** Add a work item to a workqueue */ | ||
| void grpc_workqueue_push(grpc_workqueue *workqueue, grpc_iomgr_closure *closure, | ||
| int success); | ||
|
|
||
| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| /* | ||
| * | ||
| * Copyright 2015, Google Inc. | ||
| * 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 Google Inc. 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 <grpc/support/port_platform.h> | ||
|
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| #ifdef GPR_POSIX_SOCKET | ||
|
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| #include "src/core/iomgr/workqueue.h" | ||
|
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| #include <stdio.h> | ||
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| #include <grpc/support/alloc.h> | ||
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| #include "src/core/iomgr/fd_posix.h" | ||
|
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| struct grpc_workqueue { | ||
| gpr_refcount refs; | ||
|
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| gpr_mu mu; | ||
| grpc_iomgr_closure head; | ||
| grpc_iomgr_closure *tail; | ||
|
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| grpc_wakeup_fd wakeup_fd; | ||
| grpc_fd *wakeup_read_fd; | ||
|
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| grpc_iomgr_closure read_closure; | ||
| }; | ||
|
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| static void on_readable(void *arg, int success); | ||
|
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| grpc_workqueue *grpc_workqueue_create(void) { | ||
| char name[32]; | ||
| grpc_workqueue *workqueue = gpr_malloc(sizeof(grpc_workqueue)); | ||
| gpr_ref_init(&workqueue->refs, 1); | ||
| gpr_mu_init(&workqueue->mu); | ||
| workqueue->head.next = NULL; | ||
| workqueue->tail = &workqueue->head; | ||
| grpc_wakeup_fd_init(&workqueue->wakeup_fd); | ||
| sprintf(name, "workqueue:%p", (void *)workqueue); | ||
| workqueue->wakeup_read_fd = | ||
| grpc_fd_create(GRPC_WAKEUP_FD_GET_READ_FD(&workqueue->wakeup_fd), name); | ||
| grpc_iomgr_closure_init(&workqueue->read_closure, on_readable, workqueue); | ||
| grpc_fd_notify_on_read(workqueue->wakeup_read_fd, &workqueue->read_closure); | ||
| return workqueue; | ||
| } | ||
|
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| static void workqueue_destroy(grpc_workqueue *workqueue) { | ||
| grpc_fd_shutdown(workqueue->wakeup_read_fd); | ||
| } | ||
|
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| void grpc_workqueue_ref(grpc_workqueue *workqueue) { | ||
| gpr_ref(&workqueue->refs); | ||
| } | ||
|
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| void grpc_workqueue_unref(grpc_workqueue *workqueue) { | ||
| if (gpr_unref(&workqueue->refs)) { | ||
| workqueue_destroy(workqueue); | ||
| } | ||
| } | ||
|
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| void grpc_workqueue_add_to_pollset(grpc_workqueue *workqueue, | ||
| grpc_pollset *pollset) { | ||
| grpc_pollset_add_fd(pollset, workqueue->wakeup_read_fd); | ||
| } | ||
|
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| static void on_readable(void *arg, int success) { | ||
| grpc_workqueue *workqueue = arg; | ||
| grpc_iomgr_closure *todo; | ||
|
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| if (!success) { | ||
| gpr_mu_destroy(&workqueue->mu); | ||
| /* HACK: let wakeup_fd code know that we stole the fd */ | ||
| workqueue->wakeup_fd.read_fd = 0; | ||
| grpc_wakeup_fd_destroy(&workqueue->wakeup_fd); | ||
| grpc_fd_orphan(workqueue->wakeup_read_fd, NULL, "destroy"); | ||
| gpr_free(workqueue); | ||
| return; | ||
| } else { | ||
| gpr_mu_lock(&workqueue->mu); | ||
| todo = workqueue->head.next; | ||
| workqueue->head.next = NULL; | ||
| workqueue->tail = &workqueue->head; | ||
| grpc_wakeup_fd_consume_wakeup(&workqueue->wakeup_fd); | ||
| gpr_mu_unlock(&workqueue->mu); | ||
| grpc_fd_notify_on_read(workqueue->wakeup_read_fd, &workqueue->read_closure); | ||
|
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| while (todo) { | ||
| grpc_iomgr_closure *next = todo->next; | ||
| todo->cb(todo->cb_arg, todo->success); | ||
| todo = next; | ||
| } | ||
| } | ||
| } | ||
|
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| void grpc_workqueue_push(grpc_workqueue *workqueue, grpc_iomgr_closure *closure, | ||
| int success) { | ||
| closure->success = success; | ||
| closure->next = NULL; | ||
| gpr_mu_lock(&workqueue->mu); | ||
| if (workqueue->tail == &workqueue->head) { | ||
| grpc_wakeup_fd_wakeup(&workqueue->wakeup_fd); | ||
| } | ||
| workqueue->tail->next = closure; | ||
| workqueue->tail = closure; | ||
| gpr_mu_unlock(&workqueue->mu); | ||
| } | ||
|
|
||
| #endif /* GPR_POSIX_SOCKET */ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| /* | ||
| * | ||
| * Copyright 2015, Google Inc. | ||
| * 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 Google Inc. 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. | ||
| * | ||
| */ | ||
|
|
||
| #ifndef GRPC_INTERNAL_CORE_IOMGR_WORKQUEUE_POSIX_H | ||
| #define GRPC_INTERNAL_CORE_IOMGR_WORKQUEUE_POSIX_H | ||
|
|
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| #endif /* GRPC_INTERNAL_CORE_IOMGR_WORKQUEUE_POSIX_H */ |
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