URL_EnumerateProxies
URL_Fetcher
SWI Calls
URL_EnumerateProxies
URL_EnumerateProxies
(SWI &83E09)
Enumerate proxies or no-proxy URLs.
| Entry | ||
|---|---|---|
| R0 | Flags: | |
| Bit 0 => | If set, enumerate the no-proxy list | |
| Bits 31..1 | Reserved (0) | |
| R1 | Session identifier (or zero for global proxies/no-proxies) | |
| R2 | context (0 for first call) | |
| Exit | ||
|---|---|---|
| R0 | Status flags (currently unused) | |
| R1 | Preserved | |
| R2 | Context for next call (-1 if finished) | |
| R3 | If R0:0 clear: | Pointer to read-only URL to proxy (if R2 is not -1) |
| If R0:0 set: | Pointer to read-only URL to not proxy (if R2 is not -1) | |
| R4 | If R0:0 clear: | Pointer to read-only proxy URL information (if R2 is not -1) |
| If R0:0 set: | Corrupted, contains no useful information | |
| All other registers preserved | ||
Interrupts
Interrupt state is undefined.
Re-entrancy
SWI is not re-entrant.
Use
This call is used to discover which URLs proxies are set for on a per session or global basis, or which URLs are not to be proxied. The information pointed to by R3 and R4 where applicable is a copy of that which was passed to SWI URL_SetProxy when the setting was made.
If R0:0 is set on entry, then R4 will be corrupted on exit and may not contain a meaningful value.
URL will not cope gracefully if the proxy list is updated between calls to this SWI (you may get duplicate entries or miss some out).
Related SWIs
Related vectors
None
Social
Follow us on
and
and
ROOL Store
Buy RISC OS Open merchandise here, including SD cards for Raspberry Pi and more.