Creates a new file.
Item | Description |
---|---|
dp | Points to the virtual node (v-node) of the parent directory. |
vpp | Points to the place in which the pointer to a v-node for the newly created file is returned. |
flag | Specifies an integer flag word. The vnop_create entry point uses this parameter to open the file. |
pname | Points to the name of the new file. |
mode | Specifies the mode for the new file. |
vinfop | This parameter is unused. |
crp | Points to the cred structure. This structure contains data that the file system can use to validate access permission. |
The vnop_create entry point is invoked by the logical file system to create a regular (v-node type VREG) file in the directory specified by the dp parameter. (Other v-node operations create directories and special files.) Virtual node types are defined in the /usr/include/sys/vnode.h file. The v-node of the parent directory is held during the processing of the vnop_create entry point.
To create a file, the vnop_create entry point does the following:
The vnop_create entry point can be called from the process environment only.
Item | Description |
---|---|
0 | Indicates success. |
Nonzero return values are returned from the /usr/include/sys/errno.h file to indicate failure.