diff options
Diffstat (limited to 'lib/wx/c_src/wxe_helpers.cpp')
| -rw-r--r-- | lib/wx/c_src/wxe_helpers.cpp | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/lib/wx/c_src/wxe_helpers.cpp b/lib/wx/c_src/wxe_helpers.cpp new file mode 100644 index 0000000000..d1f607d2af --- /dev/null +++ b/lib/wx/c_src/wxe_helpers.cpp @@ -0,0 +1,246 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2014-2016. All Rights Reserved. + * + * 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. + * + * %CopyrightEnd% + */ + +#include <wx/wx.h> +#include "wxe_impl.h" + +/* **************************************************************************** + * Erlang Commands + * ****************************************************************************/ + +wxeCommand::wxeCommand() +{ +} + +wxeCommand::~wxeCommand() +{ + Delete(); +} + +void wxeCommand::Delete() +{ + int n = 0; + + if(buffer) { + while(bin[n].from) { + if(bin[n].bin) + driver_free_binary(bin[n].bin); + n++; + } + if(len > 64) + driver_free(buffer); + buffer = NULL; + } + op = -2; +} + +/* **************************************************************************** + * wxeFifo + * ****************************************************************************/ +wxeFifo::wxeFifo(unsigned int sz) +{ + m_q = (wxeCommand *) driver_alloc(sizeof(wxeCommand) * sz); + m_orig_sz = sz; + m_max = sz; + m_n = 0; + m_first = 0; + cb_start = 0; + m_old = NULL; + for(unsigned int i = 0; i < sz; i++) { + m_q[i].buffer = NULL; + m_q[i].op = -1; + } +} + +wxeFifo::~wxeFifo() { + // dealloc all memory buffers + driver_free(m_q); +} + +wxeCommand * wxeFifo::Get() +{ + unsigned int pos; + do { + if(m_n <= 0) + return NULL; + + pos = m_first++; + m_n--; + m_first %= m_max; + } while(m_q[pos].op < 0); + return &m_q[pos]; +} + +wxeCommand * wxeFifo::Peek(unsigned int *i) +{ + unsigned int pos; + do { + if(*i >= m_n || m_n <= 0) + return NULL; + pos = (m_first+*i) % m_max; + (*i)++; + } while(m_q[pos].op < 0); + return &m_q[pos]; +} + + +void wxeFifo::Add(int fc, char * cbuf,int buflen, wxe_data *sd) +{ + unsigned int pos; + wxeCommand *curr; + + int n = 0; + + if(m_n == (m_max-1)) { // resize + Realloc(); + } + + pos = (m_first + m_n) % m_max; + m_n++; + + curr = &m_q[pos]; + curr->caller = driver_caller(sd->port_handle); + curr->port = sd->port; + curr->op = fc; + curr->len = buflen; + curr->bin[0].from = 0; + curr->bin[1].from = 0; + curr->bin[2].from = 0; + + if(cbuf) { + if(buflen > 64) + curr->buffer = (char *) driver_alloc(buflen); + else + curr->buffer = curr->c_buf; + memcpy((void *) curr->buffer, (void *) cbuf, buflen); + + for(unsigned int i=0; i<sd->max_bins; i++) { + if(curr->caller == sd->bin[i].from) { + sd->bin[i].from = 0; // Mark copied + curr->bin[n].bin = sd->bin[i].bin; + curr->bin[n].base = sd->bin[i].base; + curr->bin[n].size = sd->bin[i].size; + curr->bin[n].from = 1; + n++; + } + } + } else { // No-op only PING currently + curr->buffer = NULL; + } +} + +void wxeFifo::Append(wxeCommand *orig) +{ + unsigned int pos; + wxeCommand *curr; + if(m_n == (m_max-1)) { // resize + Realloc(); + } + + pos = (m_first + m_n) % m_max; + m_n++; + + curr = &m_q[pos]; + curr->op = orig->op; + if(curr->op == -1) return; + curr->caller = orig->caller; + curr->port = orig->port; + curr->len = orig->len; + curr->bin[0] = orig->bin[0]; + curr->bin[1] = orig->bin[1]; + curr->bin[2] = orig->bin[2]; + + if(orig->len > 64) + curr->buffer = orig->buffer; + else { + curr->buffer = curr->c_buf; + memcpy((void *) curr->buffer, (void *) orig->buffer, orig->len); + } + orig->op = -1; + orig->buffer = NULL; + orig->bin[0].from = 0; +} + +void wxeFifo::Realloc() +{ + unsigned int i; + unsigned int growth = m_orig_sz / 2; + unsigned int new_sz = growth + m_max; + unsigned int max = m_max; + unsigned int first = m_first; + unsigned int n = m_n; + wxeCommand * old = m_q; + wxeCommand * queue = (wxeCommand *)driver_alloc(new_sz*sizeof(wxeCommand)); + + // fprintf(stderr, "\r\nrealloc qsz %d\r\n", new_sz);fflush(stderr); + + m_max=new_sz; + m_first = 0; + m_n=0; + m_q = queue; + + for(i=0; i < n; i++) { + unsigned int pos = (i+first)%max; + if(old[pos].op >= 0) + Append(&old[pos]); + } + + for(i = m_n; i < new_sz; i++) { // Reset the rest + m_q[i].buffer = NULL; + m_q[i].op = -1; + } + // Can not free old queue here it can be used in the wx thread + m_old = old; +} + +// Strip end of queue if ops are already taken care of, avoids reallocs +void wxeFifo::Strip() +{ + while((m_n > 0) && (m_q[(m_first + m_n - 1)%m_max].op < -1)) { + m_n--; + } +} + +unsigned int wxeFifo::Cleanup(unsigned int def) +{ + if(m_old) { + driver_free(m_old); + m_old = NULL; + // Realloced we need to start from the beginning + return 0; + } else { + return def < cb_start? def : cb_start; + } +} + +/* **************************************************************************** + * TreeItemData + * ****************************************************************************/ + +wxETreeItemData::wxETreeItemData(int sz, char * data) { + size = sz; + bin = (char *) driver_alloc(sz); + memcpy(bin, data, sz); +} + +wxETreeItemData::~wxETreeItemData() +{ + driver_free(bin); +} |