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MIDI: Fix Sound Canvas VA duplication function to support the 32 signed instances current versions ship

CQTexperiment
Christopher Snowhill 2021-08-10 17:34:08 -07:00
parent 8875a36aba
commit 59a5a7687e
2 changed files with 13 additions and 68 deletions
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79
Plugins/MIDI/MIDI/SCCore.cpp
View File

@ -6,9 +6,11 @@
#include "SCCore.h"
static unsigned long g_serial = 0;
SCCore::SCCore()
{
duped = false;
serial = g_serial++;
path = 0;
handle = 0;
@ -44,11 +46,6 @@ void SCCore::Unload()
dlclose(handle);
handle = 0;
}
if (duped && path)
{
unlink(path);
duped = false;
}
if (path)
{
free(path);
@ -56,71 +53,19 @@ void SCCore::Unload()
}
}
static const char name_template[] = "/tmp/SCCore.dylib.XXXXXXXX";
bool SCCore::Load(const char * _path, bool dupe)
{
uintptr_t size = 0;
if (dupe)
{
path = (char *) malloc(strlen(name_template) + 1);
strcpy(path, name_template);
mktemp(path);
const char * uniq = path + strlen(path) - 8;
FILE * f = fopen(_path, "rb");
if (!f) return false;
fseek(f, 0, SEEK_END);
size_t fs = ftell(f);
fseek(f, 0, SEEK_SET);
size = fs;
unsigned char * buffer = (unsigned char *) malloc(fs);
if (!fs)
{
fclose(f);
return false;
}
path = (char *) malloc(strlen(_path) + 1);
strcpy(path, _path);
fread(buffer, 1, fs, f);
fclose(f);
for (size_t i = 0; i < fs - 14; ++i)
{
if (memcmp(buffer + i, "SCCore00.dylib", 14) == 0)
{
memcpy(buffer + i, uniq, 8);
i += 13;
}
}
duped = true;
f = fopen(path, "wb");
if (!f)
{
free(buffer);
return false;
}
fwrite(buffer, 1, fs, f);
fclose(f);
free(buffer);
}
else
if (dupe)
{
path = (char *) malloc(strlen(_path) + 1);
strcpy(path, _path);
FILE * f = fopen(path, "rb");
fseek(f, 0, SEEK_END);
size = ftell(f);
fclose(f);
char * name = strstr(path, "SCCore00");
if (name) {
unsigned long serial_wrapped = serial % 32;
name[6] = '0' + (serial_wrapped / 10);
name[7] = '0' + (serial_wrapped % 10);
}
}
handle = dlopen(path, RTLD_LAZY | RTLD_LOCAL);

2
Plugins/MIDI/MIDI/SCCore.h
View File

@ -5,7 +5,7 @@
class SCCore
{
bool duped;
unsigned long serial;
char * path;
void * handle;