我正在尝试在virtualenv中安装Twisted:
mkvirtualenv --python=/usr/bin/python3 venv_stack
Running virtualenv with interpreter /usr/bin/python3
Using base prefix '/usr'
New python executable in /home/buildbot/.envs/venv_stack/bin/python3
Also creating executable in /home/buildbot/.envs/venv_stack/bin/py
实现与Linux进程的双向通信的可靠方法是什么?
我发现似乎不支持同时访问"r“和"w”……或者至少是这样暗示的:
The type argument is a pointer to a null-terminated string which must be either 'r' for reading or 'w' for writing.
(我现在太怀念Erlang了)
我使用posix共享内存和使用pshared=1的posix未命名信号量构建了一个客户机服务器应用程序,信号量被放置在共享内存中。这个程序运行良好,但是当我输入ipc -m或ipc -s时,我没有看到我创建的任何共享内存段或信号量。为什么会这样呢?
/* Server main function for implementing client server program using Posix Shared Memory and Posix Unnamed Semaphores*/
#include "shm_sem.h"
int main(int argc,char *
当我看到以下错误消息时,我正在使用编译最终的构建,同时使用make && make install跟踪:
In file included from ../../../../libsanitizer/sanitizer_common/sanitizer
_platform_limits_posix.cc:193:
../../../../libsanitizer/sanitizer_common/sanitizer_internal_defs.h:339:7
2: error: narrowing conversion of '-1' from 'int
在我的应用程序中,我在父级和子级之间(在Linux和Windows上)为IPC使用共享内存。Linux的完整代码在上。
我在Linux上有下面的代码可以从共享内存中读取:
char buf[BUF_SIZE/4];
//pBuf is the shared memory location
sem_wait(semn);
//Wait for the parent process to write on the shared memory.
memcpy(buf, pBuf, sizeof(buf));
//Signal the parent
sem_post(sem0);
编写以下代码:
/