Initial commit
This commit is contained in:
commit
e7e6c62208
1
.gitignore
vendored
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1
.gitignore
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|||||||
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target
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||||||
325
Cargo.lock
generated
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325
Cargo.lock
generated
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|||||||
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# This file is automatically @generated by Cargo.
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||||||
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# It is not intended for manual editing.
|
||||||
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version = 3
|
||||||
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|
||||||
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dependencies = [
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|
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|
||||||
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|
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|
]
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|
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[[package]]
|
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||||||
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||||||
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"serde",
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]
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[[package]]
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||||||
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||||||
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||||||
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dependencies = [
|
||||||
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"cfg-if",
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||||||
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"crossbeam-utils",
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||||||
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]
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||||||
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||||||
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[[package]]
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||||||
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name = "crossbeam-utils"
|
||||||
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||||||
|
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||||||
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dependencies = [
|
||||||
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"cfg-if",
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||||||
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]
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||||||
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||||||
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[[package]]
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||||||
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||||||
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||||||
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||||||
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||||||
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"proc-macro2",
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||||||
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"quote",
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||||||
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"syn",
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||||||
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]
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||||||
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||||||
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[[package]]
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||||||
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name = "elfloader"
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||||||
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||||||
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||||||
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||||||
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dependencies = [
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||||||
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"bitflags",
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||||||
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"log",
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"xmas-elf",
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]
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||||||
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||||||
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[[package]]
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||||||
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name = "file_rpc"
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||||||
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||||||
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|
||||||
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"postcard",
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||||||
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"serde",
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||||||
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"spin",
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"std",
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]
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||||||
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||||||
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[[package]]
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||||||
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name = "getrandom"
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||||||
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||||||
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dependencies = [
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||||||
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"cfg-if",
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"libc",
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"wasi",
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]
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||||||
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||||||
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[[package]]
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||||||
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||||||
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"ahash",
|
||||||
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]
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||||||
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||||||
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[[package]]
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||||||
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name = "libc"
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||||||
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[[package]]
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||||||
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|
||||||
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"spinning_top",
|
||||||
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]
|
||||||
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|
||||||
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[[package]]
|
||||||
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name = "lock_api"
|
||||||
|
version = "0.4.8"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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|
||||||
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dependencies = [
|
||||||
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"autocfg",
|
||||||
|
"scopeguard",
|
||||||
|
]
|
||||||
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|
||||||
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[[package]]
|
||||||
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name = "log"
|
||||||
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|
||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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|
||||||
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dependencies = [
|
||||||
|
"cfg-if",
|
||||||
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]
|
||||||
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|
||||||
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[[package]]
|
||||||
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name = "memchr"
|
||||||
|
version = "2.5.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
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|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "once_cell"
|
||||||
|
version = "1.14.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "2f7254b99e31cad77da24b08ebf628882739a608578bb1bcdfc1f9c21260d7c0"
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||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "postcard"
|
||||||
|
version = "1.0.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
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|
||||||
|
dependencies = [
|
||||||
|
"cobs",
|
||||||
|
"serde",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "proc-macro2"
|
||||||
|
version = "1.0.43"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
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|
||||||
|
dependencies = [
|
||||||
|
"unicode-ident",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
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name = "quote"
|
||||||
|
version = "1.0.21"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
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||||||
|
dependencies = [
|
||||||
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"proc-macro2",
|
||||||
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]
|
||||||
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|
||||||
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[[package]]
|
||||||
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name = "rustversion"
|
||||||
|
version = "1.0.9"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "97477e48b4cf8603ad5f7aaf897467cf42ab4218a38ef76fb14c2d6773a6d6a8"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "scopeguard"
|
||||||
|
version = "1.1.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "serde"
|
||||||
|
version = "1.0.144"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "0f747710de3dcd43b88c9168773254e809d8ddbdf9653b84e2554ab219f17860"
|
||||||
|
dependencies = [
|
||||||
|
"serde_derive",
|
||||||
|
]
|
||||||
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|
||||||
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[[package]]
|
||||||
|
name = "serde_derive"
|
||||||
|
version = "1.0.144"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "94ed3a816fb1d101812f83e789f888322c34e291f894f19590dc310963e87a00"
|
||||||
|
dependencies = [
|
||||||
|
"proc-macro2",
|
||||||
|
"quote",
|
||||||
|
"syn",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "spin"
|
||||||
|
version = "0.9.4"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "7f6002a767bff9e83f8eeecf883ecb8011875a21ae8da43bffb817a57e78cc09"
|
||||||
|
dependencies = [
|
||||||
|
"lock_api",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "spinning_top"
|
||||||
|
version = "0.2.4"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "75adad84ee84b521fb2cca2d4fd0f1dab1d8d026bda3c5bea4ca63b5f9f9293c"
|
||||||
|
dependencies = [
|
||||||
|
"lock_api",
|
||||||
|
]
|
||||||
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|
||||||
|
[[package]]
|
||||||
|
name = "std"
|
||||||
|
version = "0.1.0"
|
||||||
|
dependencies = [
|
||||||
|
"core2",
|
||||||
|
"crossbeam-queue",
|
||||||
|
"derive-try-from-primitive",
|
||||||
|
"elfloader",
|
||||||
|
"hashbrown",
|
||||||
|
"linked_list_allocator",
|
||||||
|
"postcard",
|
||||||
|
"serde",
|
||||||
|
"spin",
|
||||||
|
"x86_64",
|
||||||
|
]
|
||||||
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|
||||||
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[[package]]
|
||||||
|
name = "syn"
|
||||||
|
version = "1.0.99"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "58dbef6ec655055e20b86b15a8cc6d439cca19b667537ac6a1369572d151ab13"
|
||||||
|
dependencies = [
|
||||||
|
"proc-macro2",
|
||||||
|
"quote",
|
||||||
|
"unicode-ident",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "unicode-ident"
|
||||||
|
version = "1.0.3"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "c4f5b37a154999a8f3f98cc23a628d850e154479cd94decf3414696e12e31aaf"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "version_check"
|
||||||
|
version = "0.9.4"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "volatile"
|
||||||
|
version = "0.4.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "e3ca98349dda8a60ae74e04fd90c7fb4d6a4fbe01e6d3be095478aa0b76f6c0c"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "wasi"
|
||||||
|
version = "0.11.0+wasi-snapshot-preview1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "x86_64"
|
||||||
|
version = "0.14.10"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "100555a863c0092238c2e0e814c1096c1e5cf066a309c696a87e907b5f8c5d69"
|
||||||
|
dependencies = [
|
||||||
|
"bit_field",
|
||||||
|
"bitflags",
|
||||||
|
"rustversion",
|
||||||
|
"volatile",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "xmas-elf"
|
||||||
|
version = "0.8.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "8d29b4d8e7beaceb4e77447ba941a7600d23d0319ab52da0461abea214832d5a"
|
||||||
|
dependencies = [
|
||||||
|
"zero",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "zero"
|
||||||
|
version = "0.1.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "5f1bc8a6b2005884962297587045002d8cfb8dcec9db332f4ca216ddc5de82c5"
|
||||||
18
Cargo.toml
Normal file
18
Cargo.toml
Normal file
@ -0,0 +1,18 @@
|
|||||||
|
[package]
|
||||||
|
name = "file_rpc"
|
||||||
|
version = "0.1.0"
|
||||||
|
edition = "2021"
|
||||||
|
|
||||||
|
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||||
|
|
||||||
|
[dependencies]
|
||||||
|
postcard = { version = "1.0.2", default-features = false, features = ["alloc"] }
|
||||||
|
serde = { version = "1.0.144", default-features = false, features = ["alloc", "derive"] }
|
||||||
|
spin = "0.9.4"
|
||||||
|
std = { version = "0.1.0", path = "../std" }
|
||||||
|
|
||||||
|
[profile.dev]
|
||||||
|
panic="abort"
|
||||||
|
|
||||||
|
[profile.release]
|
||||||
|
panic="abort"
|
||||||
2
rust-toolchain.toml
Normal file
2
rust-toolchain.toml
Normal file
@ -0,0 +1,2 @@
|
|||||||
|
[toolchain]
|
||||||
|
channel = "nightly"
|
||||||
95
src/lib.rs
Normal file
95
src/lib.rs
Normal file
@ -0,0 +1,95 @@
|
|||||||
|
#![no_std]
|
||||||
|
|
||||||
|
use std::{
|
||||||
|
boxed::Box,
|
||||||
|
io,
|
||||||
|
ipc::rpc::{self, IncomingCall},
|
||||||
|
vec::Vec,
|
||||||
|
};
|
||||||
|
|
||||||
|
use spin::RwLock;
|
||||||
|
|
||||||
|
static SERVER: RwLock<Option<Box<dyn Server>>> = RwLock::new(None);
|
||||||
|
|
||||||
|
const PROTO: u16 = 1;
|
||||||
|
|
||||||
|
pub trait Server: Send + Sync {
|
||||||
|
fn read(&self, fd: u64, pos: u64, len: usize) -> Result<Vec<u8>, io::Error>;
|
||||||
|
fn write(&self, fd: u64, pos: u64, data: &[u8]) -> Result<(), io::Error>;
|
||||||
|
fn close(&self, fd: u64);
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Copy, Clone)]
|
||||||
|
pub struct Client(u64);
|
||||||
|
|
||||||
|
impl Client {
|
||||||
|
pub fn new(pid: u64) -> Self {
|
||||||
|
Self(pid)
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn read(self, fd: u64, pos: u64, len: usize) -> Result<Vec<u8>, io::Error> {
|
||||||
|
postcard::from_bytes(
|
||||||
|
&rpc::send_call(
|
||||||
|
self.0,
|
||||||
|
PROTO,
|
||||||
|
0,
|
||||||
|
&postcard::to_allocvec(&(fd, pos, len)).unwrap(),
|
||||||
|
)
|
||||||
|
.get_return(),
|
||||||
|
)
|
||||||
|
.unwrap()
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn write(self, fd: u64, pos: u64, data: &[u8]) -> Result<(), io::Error> {
|
||||||
|
postcard::from_bytes(
|
||||||
|
&rpc::send_call(
|
||||||
|
self.0,
|
||||||
|
PROTO,
|
||||||
|
1,
|
||||||
|
&postcard::to_allocvec(&(fd, pos, data)).unwrap(),
|
||||||
|
)
|
||||||
|
.get_return(),
|
||||||
|
)
|
||||||
|
.unwrap()
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn close(self, fd: u64) {
|
||||||
|
postcard::from_bytes(
|
||||||
|
&rpc::send_call(self.0, PROTO, 2, &postcard::to_allocvec(&fd).unwrap()).get_return(),
|
||||||
|
)
|
||||||
|
.unwrap()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn register_server(server: Box<dyn Server>) {
|
||||||
|
*SERVER.write() = Some(server);
|
||||||
|
rpc::register_callback(PROTO, callback);
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn unregister_server() {
|
||||||
|
rpc::unregister_callback(PROTO);
|
||||||
|
*SERVER.write() = None;
|
||||||
|
}
|
||||||
|
|
||||||
|
fn callback(call: IncomingCall) {
|
||||||
|
let server_lock = SERVER.read();
|
||||||
|
let server = server_lock.as_ref().unwrap();
|
||||||
|
match call.func {
|
||||||
|
0 => {
|
||||||
|
let (fd, pos, len) = postcard::from_bytes(&call.args).unwrap();
|
||||||
|
let ret = postcard::to_allocvec(&server.read(fd, pos, len)).unwrap();
|
||||||
|
call.send_return(&ret);
|
||||||
|
}
|
||||||
|
1 => {
|
||||||
|
let (fd, pos, data) = postcard::from_bytes(&call.args).unwrap();
|
||||||
|
let ret = postcard::to_allocvec(&server.write(fd, pos, data)).unwrap();
|
||||||
|
call.send_return(&ret);
|
||||||
|
}
|
||||||
|
2 => {
|
||||||
|
let fd = postcard::from_bytes(&call.args).unwrap();
|
||||||
|
let ret = postcard::to_allocvec(&server.close(fd)).unwrap();
|
||||||
|
call.send_return(&ret);
|
||||||
|
}
|
||||||
|
_ => (),
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user