aboutsummaryrefslogtreecommitdiffstats
path: root/lib/wx/c_src/wxe_helpers.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/wx/c_src/wxe_helpers.cpp')
-rw-r--r--lib/wx/c_src/wxe_helpers.cpp167
1 files changed, 144 insertions, 23 deletions
diff --git a/lib/wx/c_src/wxe_helpers.cpp b/lib/wx/c_src/wxe_helpers.cpp
index 15d75080d9..120919e7aa 100644
--- a/lib/wx/c_src/wxe_helpers.cpp
+++ b/lib/wx/c_src/wxe_helpers.cpp
@@ -24,23 +24,96 @@
* Erlang Commands
* ****************************************************************************/
-wxeCommand::wxeCommand(int fc,char * cbuf,int buflen, wxe_data *sd)
- : wxObject()
+wxeCommand::wxeCommand()
{
+}
+
+wxeCommand::~wxeCommand()
+{
+ Delete();
+}
+
+void wxeCommand::Delete()
+{
+ int n = 0;
+
+ if(buffer) {
+ while(bin[n]) {
+ if(bin[n]->bin)
+ driver_free_binary(bin[n]->bin);
+ driver_free(bin[n++]);
+ }
+ if(len > 64)
+ driver_free(buffer);
+ buffer = NULL;
+ op = -1;
+ }
+}
+
+/* ****************************************************************************
+ * 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;
+ 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;
+ if(m_n > 0) {
+ pos = m_first++;
+ m_n--;
+ m_first %= m_max;
+ return &m_q[pos];
+ }
+ return NULL;
+}
+
+void wxeFifo::Add(int fc, char * cbuf,int buflen, wxe_data *sd)
+{
+ unsigned int pos;
+ wxeCommand *curr;
+
WXEBinRef *temp, *start, *prev;
int n = 0;
- ref_count = 1;
- caller = driver_caller(sd->port_handle);
- port = sd->port;
- op = fc;
- len = buflen;
- bin[0] = NULL;
- bin[1] = NULL;
- bin[2] = NULL;
+
+ 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] = NULL;
+ curr->bin[1] = NULL;
+ curr->bin[2] = NULL;
if(cbuf) {
- buffer = (char *) driver_alloc(len);
- memcpy((void *) buffer, (void *) cbuf, len);;
+ if(buflen > 64)
+ curr->buffer = (char *) driver_alloc(buflen);
+ else
+ curr->buffer = curr->c_buf;
+ memcpy((void *) curr->buffer, (void *) cbuf, buflen);
temp = sd->bin;
@@ -48,8 +121,8 @@ wxeCommand::wxeCommand(int fc,char * cbuf,int buflen, wxe_data *sd)
start = temp;
while(temp) {
- if(caller == temp->from) {
- bin[n++] = temp;
+ if(curr->caller == temp->from) {
+ curr->bin[n++] = temp;
if(prev) {
prev->next = temp->next;
} else {
@@ -63,20 +136,68 @@ wxeCommand::wxeCommand(int fc,char * cbuf,int buflen, wxe_data *sd)
}
sd->bin = start;
} else { // No-op only PING currently
- buffer = NULL;
+ curr->buffer = NULL;
}
}
-wxeCommand::~wxeCommand() {
- int n = 0;
- if(buffer) {
- while(bin[n]) {
- if(bin[n]->bin)
- driver_free_binary(bin[n]->bin);
- driver_free(bin[n++]);
+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->caller = orig->caller;
+ curr->port = orig->port;
+ curr->op = orig->op;
+ 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] = NULL;
+}
+
+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));
+
+ m_max=new_sz;
+ m_first = 0;
+ m_n=0;
+ m_q = queue;
+
+ for(i=0; i < n; i++) {
+ unsigned int pos = i+first;
+ if(old[pos%max].op >= 0) {
+ Append(&old[pos%max]);
}
- driver_free(buffer);
}
+ 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;
}
/* ****************************************************************************