diff options
Diffstat (limited to 'host/lib/usrp/e100')
| -rw-r--r-- | host/lib/usrp/e100/e100_mmap_zero_copy.cpp | 45 |
1 files changed, 19 insertions, 26 deletions
diff --git a/host/lib/usrp/e100/e100_mmap_zero_copy.cpp b/host/lib/usrp/e100/e100_mmap_zero_copy.cpp index cdb7094f4..58beeb424 100644 --- a/host/lib/usrp/e100/e100_mmap_zero_copy.cpp +++ b/host/lib/usrp/e100/e100_mmap_zero_copy.cpp @@ -1,5 +1,5 @@ // -// Copyright 2010-2011 Ettus Research LLC +// Copyright 2010-2012 Ettus Research LLC // // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by @@ -19,6 +19,7 @@ #include <uhd/transport/zero_copy.hpp> #include <uhd/utils/log.hpp> #include <uhd/exception.hpp> +#include <boost/make_shared.hpp> #include <linux/usrp_e.h> #include <sys/mman.h> //mmap #include <unistd.h> //getpagesize @@ -41,23 +42,19 @@ public: _mem(mem), _info(info) { /* NOP */ } void release(void){ - if (_info->flags != RB_USER_PROCESS) return; if (fp_verbose) UHD_LOGV(always) << "recv buff: release" << std::endl; _info->flags = RB_KERNEL; //release the frame } - bool ready(void){return _info->flags & RB_USER;} + UHD_INLINE bool ready(void){return _info->flags & RB_USER;} - sptr get_new(void){ - if (fp_verbose) UHD_LOGV(always) << " make_recv_buff: " << get_size() << std::endl; + UHD_INLINE sptr get_new(void){ + if (fp_verbose) UHD_LOGV(always) << " make_recv_buff: " << _info->len << std::endl; _info->flags = RB_USER_PROCESS; //claim the frame - return make_managed_buffer(this); + return make(this, _mem, _info->len); } private: - const void *get_buff(void) const{return _mem;} - size_t get_size(void) const{return _info->len;} - void *_mem; ring_buffer_info *_info; }; @@ -71,28 +68,24 @@ public: e100_mmap_zero_copy_msb(void *mem, ring_buffer_info *info, size_t len, int fd): _mem(mem), _info(info), _len(len), _fd(fd) { /* NOP */ } - void commit(size_t len){ - if (_info->flags != RB_USER_PROCESS) return; - if (fp_verbose) UHD_LOGV(always) << "send buff: commit " << len << std::endl; - _info->len = len; + void release(void){ + if (fp_verbose) UHD_LOGV(always) << "send buff: commit " << size() << std::endl; + _info->len = size(); _info->flags = RB_USER; //release the frame if (::write(_fd, NULL, 0) < 0){ //notifies the kernel UHD_LOGV(rarely) << UHD_THROW_SITE_INFO("write error") << std::endl; } } - bool ready(void){return _info->flags & RB_KERNEL;} + UHD_INLINE bool ready(void){return _info->flags & RB_KERNEL;} - sptr get_new(void){ - if (fp_verbose) UHD_LOGV(always) << " make_send_buff: " << get_size() << std::endl; + UHD_INLINE sptr get_new(void){ + if (fp_verbose) UHD_LOGV(always) << " make_send_buff: " << _len << std::endl; _info->flags = RB_USER_PROCESS; //claim the frame - return make_managed_buffer(this); + return make(this, _mem, _len); } private: - void *get_buff(void) const{return _mem;} - size_t get_size(void) const{return _len;} - void *_mem; ring_buffer_info *_info; size_t _len; @@ -162,14 +155,14 @@ public: //initialize the managed receive buffers for (size_t i = 0; i < get_num_recv_frames(); i++){ - _mrb_pool.push_back(e100_mmap_zero_copy_mrb( + _mrb_pool.push_back(boost::make_shared<e100_mmap_zero_copy_mrb>( recv_buff + get_recv_frame_size()*i, (*recv_info) + i )); } //initialize the managed send buffers for (size_t i = 0; i < get_num_recv_frames(); i++){ - _msb_pool.push_back(e100_mmap_zero_copy_msb( + _msb_pool.push_back(boost::make_shared<e100_mmap_zero_copy_msb>( send_buff + get_send_frame_size()*i, (*send_info) + i, get_send_frame_size(), _fd )); @@ -183,7 +176,7 @@ public: managed_recv_buffer::sptr get_recv_buff(double timeout){ if (fp_verbose) UHD_LOGV(always) << "get_recv_buff: " << _recv_index << std::endl; - e100_mmap_zero_copy_mrb &mrb = _mrb_pool[_recv_index]; + e100_mmap_zero_copy_mrb &mrb = *_mrb_pool[_recv_index]; //poll/wait for a ready frame if (not mrb.ready()){ @@ -215,7 +208,7 @@ public: managed_send_buffer::sptr get_send_buff(double timeout){ if (fp_verbose) UHD_LOGV(always) << "get_send_buff: " << _send_index << std::endl; - e100_mmap_zero_copy_msb &msb = _msb_pool[_send_index]; + e100_mmap_zero_copy_msb &msb = *_msb_pool[_send_index]; //poll/wait for a ready frame if (not msb.ready()){ @@ -254,8 +247,8 @@ private: size_t _frame_size, _map_size; //re-usable managed buffers - std::vector<e100_mmap_zero_copy_mrb> _mrb_pool; - std::vector<e100_mmap_zero_copy_msb> _msb_pool; + std::vector<boost::shared_ptr<e100_mmap_zero_copy_mrb> > _mrb_pool; + std::vector<boost::shared_ptr<e100_mmap_zero_copy_msb> > _msb_pool; //indexes into sub-sections of mapped memory size_t _recv_index, _send_index; |