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Update 0046-syscalls-summary.md #449

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Update 0046-syscalls-summary.md
linnnsss Aug 18, 2025
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linnnsss Aug 18, 2025
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13 changes: 9 additions & 4 deletions rfcs/0046-syscalls-summary/0046-syscalls-summary.md
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Expand Up @@ -32,10 +32,15 @@ This RFC aims to provide a comprehensive summary of all CKB VM syscalls as speci
| 2 | 2041 | [ckb_vm_version](https://github.com/nervosnetwork/rfcs/blob/master/rfcs/0034-vm-syscalls-2/0034-vm-syscalls-2.md#vm-version) | Return the version of CKB VM being used to execute the current script. |
| 2 | 2042 | [ckb_current_cycles](https://github.com/nervosnetwork/rfcs/blob/master/rfcs/0034-vm-syscalls-2/0034-vm-syscalls-2.md#current-cycles) | Return the number of cycles consumed by the currently running script *immediately before* executing this syscall. This syscall will consume an additional 500 cycles. |
| 2 | 2043 | [ckb_exec](https://github.com/nervosnetwork/rfcs/blob/master/rfcs/0034-vm-syscalls-2/0034-vm-syscalls-2.md#exec) | Run a script executable from the specified cell using the current VM context. This replaces the original calling running script executable with the new specified script executable. This is similar to the [exec call](https://en.wikipedia.org/wiki/Exec_(system_call)) found in several operating systems. |
| | | ckb_spawn | (To be added in CKB2023.) Run a script executable from the specified cell using the current VM context, but return to the original calling script executable upon termination. This is similar to the [spawn function](https://en.wikipedia.org/wiki/Spawn_(computing)) found in several operating systems and programming languages. |
| | | ckb_get_memory_limit | (To be added in CKB2023.) Return the maximum amount of memory available to the current script being executed. |
| | | ckb_set_content | (To be added in CKB2023.) Set the content of the designated memory region that can be read by the parent (calling) script which executed the current script via the spawn function. |
| | | ckb_load_extension | (To be added in CKB2023.) Load the extention field data and copy it using partial loading. |
| 2 | 2101 | [ckb_spawn](https://github.com/nervosnetwork/rfcs/blob/master/rfcs/0050-vm-syscalls-3/0050-vm-syscalls-3.md#spawn) | Run a Script executable from the specified Cell using the current VM context, but return to the original calling Script executable upon termination. This is similar to the [spawn function](<https://en.wikipedia.org/wiki/Spawn_(computing)>) found in several operating systems and programming languages. |
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@XuJiandong XuJiandong Aug 18, 2025

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should be 2601, see https://github.com/nervosnetwork/ckb-c-stdlib/blob/8212a056872605491cb11eab7446306b1567db17/ckb_consts.h#L23C9-L30

| 2 | 2104 | [ckb_load_extension](https://github.com/nervosnetwork/rfcs/blob/master/rfcs/0050-vm-syscalls-3/0050-vm-syscalls-3.md#load-block-extension) | Load the extension field data and copy it using partial loading. |
| 2 | 2602 | [ckb_wait](https://github.com/nervosnetwork/rfcs/blob/master/rfcs/0050-vm-syscalls-3/0050-vm-syscalls-3.md#wait) | Pause until the execution of a process specified by `pid` has ended. |
| 2 | 2603 | [ckb_process_id](https://github.com/nervosnetwork/rfcs/blob/master/rfcs/0050-vm-syscalls-3/0050-vm-syscalls-3.md#process-id) | Get the current process id. |
| 2 | 2604 | [ckb_pipe](https://github.com/nervosnetwork/rfcs/blob/master/rfcs/0050-vm-syscalls-3/0050-vm-syscalls-3.md#pipe) | Create a pipe with read-write pair of file descriptions. |
| 2 | 2605 | [ckb_write](https://github.com/nervosnetwork/rfcs/blob/master/rfcs/0050-vm-syscalls-3/0050-vm-syscalls-3.md#write) | Write data to a pipe via a file descriptor. |
| 2 | 2606 | [ckb_read](https://github.com/nervosnetwork/rfcs/blob/master/rfcs/0050-vm-syscalls-3/0050-vm-syscalls-3.md#read) | Read data from a pipe via a file descriptor. |
| 2 | 2607 | [ckb_inherited_file_descriptors](https://github.com/nervosnetwork/rfcs/blob/master/rfcs/0050-vm-syscalls-3/0050-vm-syscalls-3.md#inherited-file-descriptors) | Retrieve the file descriptors available to the current process, which are passed in from the parent process. |
| 2 | 2608 | [ckb_close](https://github.com/nervosnetwork/rfcs/blob/master/rfcs/0050-vm-syscalls-3/0050-vm-syscalls-3.md#close) | Manually close a file descriptor. |

## Constants

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