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author | Jesse Hall <jessehall@google.com> | 2012-04-16 12:49:39 -0700 |
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committer | Jesse Hall <jessehall@google.com> | 2012-04-16 15:54:18 -0700 |
commit | ce6c3389061fb9fcdefc94fab2044a8e11600b52 (patch) | |
tree | fedd1a11cbd21ec14bf00be83b8712054f8c5506 /emulator/opengl/tests/event_injector/iolooper.h | |
parent | ad0111a77b0f0908cc945dc6e8e8949b75cb8886 (diff) | |
download | sdk-ce6c3389061fb9fcdefc94fab2044a8e11600b52.zip sdk-ce6c3389061fb9fcdefc94fab2044a8e11600b52.tar.gz sdk-ce6c3389061fb9fcdefc94fab2044a8e11600b52.tar.bz2 |
Move emulator GLES from development.git to sdk.git
The emulator GLES support has two interfaces: a host shared library
interface used by QEMU, and a protocol between the platform and the
host. The host library interface is not versioned; QEMU and the GLES
renderer must match. The protocol on the other hand must be backwards
compatible: a new GLES renderer must support an older platform image.
Thus for branching purposes it makes more sense to put the GLES
renderer in sdk.git, which is branched along with qemu.git for SDK
releases. Platform images will be built against the protocol version
in the platform branch of sdk.git.
Change-Id: I2c3bce627ecfd0a4b3e688d1839fe10755a21e58
Diffstat (limited to 'emulator/opengl/tests/event_injector/iolooper.h')
-rw-r--r-- | emulator/opengl/tests/event_injector/iolooper.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/emulator/opengl/tests/event_injector/iolooper.h b/emulator/opengl/tests/event_injector/iolooper.h new file mode 100644 index 0000000..4aa3db7 --- /dev/null +++ b/emulator/opengl/tests/event_injector/iolooper.h @@ -0,0 +1,91 @@ +/* +* Copyright (C) 2011 The Android Open Source Project +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ +#ifndef IOLOOPER_H +#define IOLOOPER_H + +#include <stdint.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/* An IOLooper is an abstraction for select() */ + +typedef struct IoLooper IoLooper; + +IoLooper* iolooper_new(void); +void iolooper_free( IoLooper* iol ); +void iolooper_reset( IoLooper* iol ); + +void iolooper_add_read( IoLooper* iol, int fd ); +void iolooper_add_write( IoLooper* iol, int fd ); +void iolooper_del_read( IoLooper* iol, int fd ); +void iolooper_del_write( IoLooper* iol, int fd ); + +enum { + IOLOOPER_READ = (1<<0), + IOLOOPER_WRITE = (1<<1), +}; +void iolooper_modify( IoLooper* iol, int fd, int oldflags, int newflags); + +int iolooper_poll( IoLooper* iol ); +/* Wrapper around select() + * Return: + * > 0 in case an I/O has occurred, or < 0 on error, or 0 on timeout with + * errno set to ETIMEDOUT. + */ +int iolooper_wait( IoLooper* iol, int64_t duration ); + +int iolooper_is_read( IoLooper* iol, int fd ); +int iolooper_is_write( IoLooper* iol, int fd ); +/* Returns 1 if this IoLooper has one or more file descriptor to interact with */ +int iolooper_has_operations( IoLooper* iol ); +/* Gets current time in milliseconds. + * Return: + * Number of milliseconds corresponded to the current time on success, or -1 + * on failure. + */ +int64_t iolooper_now(void); +/* Waits for an I/O to occur before specific absolute time. + * This routine should be used (instead of iolooper_wait) in cases when multiple + * sequential I/O should be completed within given time interval. For instance, + * consider the scenario, when "server" does two sequential writes, and "client" + * now has to read data transferred with these two distinct writes. It might be + * wasteful to do two reads, each with the same (large) timeout. Instead, it + * would be better to assign a deadline for both reads before the first read, + * and call iolooper_wait_absoulte with the same deadline value: + * int64_t deadline = iolooper_now() + TIMEOUT; + * if (iolooper_wait_absoulte(iol, deadline)) { + * // Process first buffer. + * (iolooper_wait_absoulte(iol, deadline)) { + * // Process second read + * } + * } + * Param: + * iol IoLooper instance for an I/O. + * deadline Deadline (absoulte time in milliseconds) before which an I/O should + * occur. + * Return: + * Number of I/O descriptors set in iol, if an I/O has occurred, 0 if no I/O + * occurred before the deadline, or -1 on error. + */ +int iolooper_wait_absolute(IoLooper* iol, int64_t deadline); + +#ifdef __cplusplus +} +#endif + +#endif /* IOLOOPER_H */ |