diff options
Diffstat (limited to 'src/sim/process.hh')
| -rw-r--r-- | src/sim/process.hh | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/src/sim/process.hh b/src/sim/process.hh index cdb3826ff..fe41a35e4 100644 --- a/src/sim/process.hh +++ b/src/sim/process.hh @@ -161,10 +161,10 @@ class Process : public SimObject SETranslatingPortProxy initVirtMem; private: - // file descriptor remapping support - static const int MAX_FD = 256; // max legal fd value - FdMap fd_map[MAX_FD+1]; + static const int NUM_FDS = 1024; + // File descriptor remapping support. + FdMap *fd_map; public: // static helper functions to generate file descriptors for constructor @@ -187,15 +187,12 @@ class Process : public SimObject // provide program name for debug messages virtual const char *progName() const { return "<unknown>"; } - // map simulator fd sim_fd to target fd tgt_fd - void dup_fd(int sim_fd, int tgt_fd); - // generate new target fd for sim_fd int alloc_fd(int sim_fd, const std::string& filename, int flags, int mode, bool pipe); - // free target fd (e.g., after close) - void free_fd(int tgt_fd); + // disassociate target fd with simulator fd and cleanup subsidiary fields + void free_fdmap_entry(int tgt_fd); // look up simulator fd for given target fd int sim_fd(int tgt_fd); @@ -203,6 +200,13 @@ class Process : public SimObject // look up simulator fd_map object for a given target fd FdMap *sim_fd_obj(int tgt_fd); + // look up target fd for given host fd + // Assumes a 1:1 mapping between target file descriptor and host file + // descriptor. Given the current API, this must be true given that it's + // not possible to map multiple target file descriptors to the same host + // file descriptor + int tgt_fd(int sim_fd); + // fix all offsets for currently open files and save them void fix_file_offsets(); |